Exhibit 2.1
 EXECUTION COPY




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TABLE OF CONTENTS
 Page1. Definitions
    
    
    12. Sale and Purchase of the Shares; Purchase Price
    
    
    102.1 Sale and Purchase of the Shares
    
    
    102.2 Purchase Price
    
    
    102.3 Estimated Closing Purchase Price
    
    
    102.4 Payment of Purchase Price
    
    
    112.5 Purchase Price Adjustment
    
    
    113. Closing
    
    
    123.1 Location; Date
    
    
    123.2 Deliveries
    
    
    133.3 Termination
    
    
    144. Representations and Warranties of the Sole Stockholder
    
    
    144.1 Organization and Standing
    
    
    154.2 Capitalization and Ownership
    
    
    154.3 Subsidiaries
    
    
    154.4 Authority and Binding Effect
    
    
    154.5 Validity of the Transactions
    
    
    164.6 Intentionally Omitted
    
    
    164.7 Third-Party Options
    
    
    164.8 Financial Statements; Books of Account
    
    
    164.9 Taxes
    
    
    164.10 Undisclosed Liabilities
    
    
    194.11 No Manufacturing
    
    
    194.12 Accounts Receivable
    
    
    194.13 Title to Assets; All Tangible Assets
    
    
    194.14 Condition of Assets
    
    
    194.15 Real Property
    
    
    204.16 Intellectual Property; Software and Information Systems
    
    
    204.17 Contracts
    
    
    234.18 Employees/Independent Contractors
    
    
    244.19 Governmental Permits
    
    
    264.20 Compliance with Law and Court Orders
    
    
    264.21 Insurance
    
    
    274.22 Labor Matters
    
    
    274.23 Employee Benefit Plans
    
    
    274.24 Transactions with Affiliates
    
    
    304.25 Absence of Certain Changes
    
    
    304.26 Environmental Matters
    
    
    314.27 Additional Information
    
    
    314.28 Corporate Records
    
    
    314.29 Brokers and Finders
    
    
    314.30 Relationship With Customers
    
    
    324.31 Statements and Other Documents Not Misleading
    
    
    32
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TABLE OF CONTENTS
 Page5. Representations and Warranties of the Purchaser
    
    
    325.1 Organization and Standing
    
    
    325.2 Authority and Binding Effect
    
    
    325.3 Validity of the Transactions
    
    
    325.4 No Additional Representations or Warranties
    
    
    326. Pre-Closing Covenants
    
    
    336.1 Access
    
    
    336.2 No
Solicitation, Etc.
    
    
    336.3 Operation of the Business
    
    
    336.4 Update of Seller Disclosure Letter
    
    
    356.5 Telephone Service and Internet Access
    
    
    356.6 Plans
    
    
    356.7 280G Matters
    
    
    356.8 Financial Statement Audit
    
    
    357. Other Covenants
    
    
    357.1 Consents, Further Assurances
    
    
    357.2 Covenant Not to Compete
    
    
    367.3 Confidential Information
    
    
    367.4 Nonsolicitation
    
    
    367.5 Hiring of Employees
    
    
    367.6 Affiliates
    
    
    367.7 Injunctive Relief
    
    
    377.8 Tax Matters
    
    
    377.9 Conduct of the Business Following the Closing
    
    
    397.10 Uncollected Accounts Receivable
    
    
    398. Conditions Precedent to Obligations of the Purchaser
    
    
    398.1 Required Consents
    
    
    398.2 Transaction Documents
    
    
    398.3 Representations and Warranties; Performance of Obligations
    
    
    398.4 Material Adverse Changes
    
    
    398.5 Legal Matters
    
    
    408.6 Director and Officer Resignations
    
    
    408.7 Key Employees
    
    
    408.8 Financial Statement Audit
    
    
    409. Conditions Precedent to Obligations of the Seller Parties
    
    
    409.1 Transaction Documents
    
    
    409.2 Representations and Warranties; Performance of Obligations
    
    
    4010. Indemnification
    
    
    4010.1 By the Sole Stockholder
    
    
    4010.2 By the Purchaser
    
    
    4210.3 Procedure for Claims
    
    
    4210.4 Claims Period
    
    
    44
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TABLE OF CONTENTS
 Page10.5 Third Party Claims
    
    
    4410.6 Effect of Investigation or Knowledge
    
    
    4510.7 Survival Period
    
    
    4510.8 No Contribution/Indemnification
    
    
    4510.9 Contingent Claims
    
    
    4511. Public Announcements
    
    
    4512. General Matters
    
    
    4512.1 Contents of Agreement
    
    
    4512.2
Amendment, Parties in Interest, Assignment, Etc.
    
    
    4512.3 Further Assurances
    
    
    4612.4 Interpretation
    
    
    4612.5 Counterparts
    
    
    4612.6 Negotiated Agreement
    
    
    4612.7 Severability
    
    
    4713. Remedies
    
    
    4714. Notices
    
    
    4715. Governing Law
    
    
    4816. General Release
    
    
    49
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EXHIBITS
 EXHIBITSExhibit A
    
    Net Working Capital CalculationExhibit B
    
    Form of Escrow AgreementExhibit C
    
    Key Employee Offer Letters
  iv




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STOCK PURCHASE AGREEMENT
 Agreement Purchaser Company Sole Stockholder
 Background
 Shares
 Terms and Conditions
  Definitions
  401(k) Plan Section 6.6
 Accounts Receivable
 Action Section 10.5
 Affiliates
 Agreement
 Assets
 Balance Sheet Section 4.8(a)
 Balance Sheet Date Section 4.8(a)
 Base Purchase Price Section 2.2




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Business
 Business Day
 Cap Section 10.3(d)
 Charter Documents
 Claim Notice Section 10.3(a)
 Claim Response Section 10.3(a)
 Closing Section 3.1
 Closing Balance Sheet Section 2.5(a)
 Closing Date Section 3.1
 Closing Indebtedness Section 4.17(b) of the Seller Disclosure Letter
 Closing Payment Section 2.3
 Closing Time
 Closing Working Capital Section 2.5(a)
 COBRA
 Code
 Company
 Company Domain Name
 Company Intellectual Property
 Company Software
 Company Web Sites Section 4.16(r)
  2




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Confidential Information
 Contingent Claim Section 10.9
 Contract
 Copyrights
 Court Order
 Customer Contracts
 Damages Section 10.1(a)
 Deductible Amount Section 10.3(d)
 Default
 Domain Name
 Environmental Laws
 ERISA
 ERISA Affiliate
 Escrow Agent Section 2.4(b)
 Escrow Agreement Section 2.4(b)
  3




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Escrow Amount
 Escrow Funds Section 2.4(b)
 Excepted Representations Section 10.3(d)
 Exchange Act
 Expiration Date Section 10.4
 Final Purchase Price Section 2.5(b)
 Financial Statements Section 4.8(a)
 Financial Statement Audit Section 6.8
 FTP Site
 GAAP
 Governmental Body
 Governmental Permits
 HIPAA
 Inception Date
 Income Taxes
  4




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Indebtedness
 Indemnified Party Section 10.3(a)
 Indemnified Purchaser Party Section 10.1
 Indemnified Seller Party Section 10.2
 Indemnitor Section 10.3(a)
 Independent Auditors Section 2.5(b)
 Intellectual Property
 IRS
 Key Employees
 Knowledge to the knowledge of
 provided
  5




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Law
 Liability
 Licensed Intellectual Property
 Liens
 Liquidated Claim Notice Section 10.3(a)
 Litigation
 Material Adverse Effect
 Negative Adjustment Section 2.5(c)(iii)
 Net Working Capital minus Exhibit A
 Non-Disclosure Agreement
 Officers Certificate Section 8.3
 Open Source Software
  6




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Ordinary course ordinary course of business
 Owned Intellectual Property
 Party
 Patent
 Permitted Liens Section 4.13 of the Seller Disclosure Letter
 Person
 Petsky
 Plans
  7




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Positive Adjustment Section 2.5(c)(ii)
 Post-Closing Period
 Pre-Closing Period
 Prime Rate The Wall Street
Journal
 Purchase Price Section 2.2
 Purchaser
 Purchaser Closing Calculations Section 2.5(a)
 Purchaser Officers Certificate Section 9.2
 Qualified Plan Section 4.23(c)
 Real Estate Lease Section 4.15
 Real Property
 Registered Intellectual Property
 Released Claims Article 16
 Released Parties Article 16
 Releasors Article 16
 Relevant Group
 Relevant Group Member
 Required Consents Section 4.5
  8




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Response Period Section 10.3(a)
 Restricted Party Section 7.2
 Restricted Period Section 7.2
 Restricted Territory Section 7.2
 SEC
 Securities Act
 Seller Disclosure Letter Article 4
 Seller Parties
 Shares
 Software
 Sole Stockholder
 Target Working Capital
 Tax Authority
 Tax Returns
 Taxes
  9




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Trademarks
 Trade Secrets
 Transaction Documents
 Transaction Expenses
 Transactions
 Unliquidated Claim Section 10.3(a)
 U.S.
 Web Section 4.16(s)
 Written Resignations Section 3.2(a)(iii)
 Sale and Purchase of the Shares; Purchase Price
 Sale and Purchase of the Shares
 Purchase Price Purchase Price Section 2.4 Section 2.5 Base Purchase
Price minus
 Estimated Closing Purchase Price
  Estimated Balance Sheet Exhibit A
  10




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Estimated
Working Capital
  Closing
Payment minus Section 2.3(a)
 Payment of Purchase Price
 Section 2.3(b) minus
 Escrow Agent Escrow
Agreement Exhibit B Escrow Funds
  Purchase Price Adjustment
  Closing Balance Sheet Exhibit A
 Closing Working Capital
 Final Purchase Price Purchaser
Closing Calculations minus
  11




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Section 2.5 Independent Auditors
   Section 2.5(c)(i) Positive Adjustment
 Section 2.5(c)(i) Negative Adjustment
 Section 2.5 Section 2.5 Section 2.5 Article 10
 Closing
 Location; Date Closing Articles 8 9 Closing Date
  12




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Deliveries
    Written
Resignations
            Exhibit C
  13




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Termination
   provided Section
3.3(a)(ii)
  Section 8.3
 Section 9.2
  Section 3.3 Section 3.3 Section 13(a) Article 10
 Representations and Warranties of the Sole Stockholder Article 4 Seller Disclosure Letter Article 4 provided however
  14




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Organization and Standing Section 4.1 of the Seller Disclosure Letter Section 4.1 of the Seller
Disclosure Letter
 Capitalization and Ownership Article 2
 Subsidiaries
 Authority and Binding Effect Section 4.4 of the Seller Disclosure Letter
  15




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Validity of the Transactions Section 4.5 of the Seller Disclosure Letter Required
Consents
 Intentionally Omitted
 Third-Party Options
 Financial Statements; Books of Account
 Section 4.8(a) of the Seller Disclosure Letter Balance Sheet Date Financial Statements Section 4.8(a) of
the Seller Disclosure Letter Section 4.8(a) of the Seller Disclosure Letter Balance Sheet
 Section 4.8(b) of the Seller Disclosure Letter
 Taxes Section 4.9 of the Seller Disclosure
Letter
    16




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17




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Section 4.9(q) of the Seller Disclosure Letter
       18




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Undisclosed Liabilities Section 4.10 of the Seller
Disclosure Letter
   No Manufacturing
 Accounts Receivable
 Title to Assets; All Tangible Assets Section 4.13 of
the Seller Disclosure Letter Section 4.15 of the Seller Disclosure Letter Section 4.16 of the Seller Disclosure Letter Section 4.17 of the Seller Disclosure Letter Section 4.13 of the Seller
Disclosure Letter
 Condition of Assets Section 4.14 of the Seller
Disclosure Letter Section 4.24
of the Seller Disclosure Letter Section 4.16 of the Seller Disclosure Letter Section 4.17 of the Seller Disclosure Letter Section 4.24 of the Seller Disclosure Letter
  19




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Real Property Section 4.15 of the Seller Disclosure Letter Real Estate Lease Real Estate Leases Section 4.15 of the Seller Disclosure Letter Section 4.15 of the Seller Disclosure Letter Section 4.15 of the Seller
Disclosure Letter Section 4.15 of the Seller Disclosure Letter
 Intellectual Property; Software and Information Systems
 Section 4.16(a) of the Seller Disclosure Letter Section 4.16(a) of the Seller Disclosure Letter Section 4.16(s) of the Seller Disclosure Letter
  Section 4.16(c) of the Seller Disclosure Letter
 Section 4.16(d) of the Seller Disclosure Letter
   20




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Section 4.16(g) of the Seller Disclosure Letter
 Section 4.16(h) of the Seller Disclosure Letter
  Section 4.16(j) of the Seller Disclosure Letter
    21




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Section 4.24 of the Seller Disclosure Letter
 Section 4.16(p) of the Seller Disclosure Letter
 Section 4.16(q) of the Seller Disclosure Letter Section 4.16(q) of the Seller
Disclosure Letter
 Web Company Web Sites
  22




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Section 4.16(s) of the Seller Disclosure Letter Section 4.16(s) of the Seller
Disclosure Letter
 Contracts
 Section 4.17(a) of the Seller Disclosure Letter
 Section 4.17(b) of the Seller Disclosure Letter
          23




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Section 4.17
 Section 4.15 of the Seller Disclosure Letter Section 4.17 of the Seller Disclosure Letter
  Employees/Independent Contractors
   24




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Section 4.18(b) of the Seller Disclosure Letter
 Section 4.18(c) of the Seller Disclosure Letter Section 4.18(c) of the Seller Disclosure Letter
 Section 4.18(d) of the Seller
Disclosure Letter Section 4.18(c) of the Seller Disclosure Letter Section 4.18(d) of the Seller Disclosure Letter
 Section 4.18(e) of the Seller Disclosure Letter
   25




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Section 4.18(g) of the Seller Disclosure Letter
 Governmental Permits Section 4.19 of the Seller Disclosure Letter
 Compliance with Law and Court Orders
 Section 4.20(a) of the Seller Disclosure Letter
 Section 4.20(b) of the Seller Disclosure Letter
    26




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Insurance Section 4.21 of the Seller Disclosure Letter Section 4.21 of
the Seller Disclosure Letter Section
4.21 of the Seller Disclosure Letter Section 4.21 of the Seller Disclosure Letter
 Labor Matters Section
4.22 of the Seller Disclosure Letter
 Employee Benefit Plans
 Section 4.23(a) of the Seller Disclosure Letter
 Section 4.23(b) of the Seller Disclosure Letter
  27




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Section 4.23(c) of the Seller Disclosure Letter Qualified Plan
    Section 4.23(g) of the Seller Disclosure Letter
     28




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29




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Transactions with Affiliates Section 4.24 of the
Seller Disclosure Letter Section 4.24 of the Seller Disclosure Letter
 Absence of Certain Changes Section 4.25 of the Seller Disclosure Letter
            30




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Environmental Matters Section 4.20
 Additional Information Section 4.27 of the Seller Disclosure Letter
      Corporate Records
 Brokers and Finders
  31




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Relationship With Customers Section
4.30 of the Seller Disclosure Letter Section 4.30 of the Seller
Disclosure Letter Section 4.30 of the Seller Disclosure Letter Section 4.30 of the Seller Disclosure Letter
 Statements and Other Documents Not Misleading
 Representations and Warranties of the Purchaser
 Organization and Standing
 Authority and Binding Effect
 Validity of the Transactions
 No Additional Representations or Warranties
  32




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Pre-Closing Covenants
 Access
 No Solicitation, Etc
  Section 6.2(a) Section 6.2(a)
 Section 6.2
 Operation of the Business
      33




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Update of Seller Disclosure Letter Article 8
  34




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Telephone Service and Internet Access
 Plans 401(k) Plan
 280G Matters provided
 Financial Statement Audit Financial Statement Audit
 Other Covenants
 Consents, Further Assurances
  35




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Covenant Not to Compete Restricted Business Activities Restricted Party Restricted Period Restricted Territory Section 7.2 Section
7.2 Section 7.2 Sections 7.3 7.4 Non-Restricted Business Section 7.2 Sections 7.3 7.4
 Confidential Information
 Nonsolicitation
 Hiring of Employees provided however Section 7.5
 Affiliates Sections 7.2, 7.3, 7.4 7.5 Sections 7.2, 7.3, 7.4, 7.5 7.6
  36




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Injunctive Relief Sections 7.2, 7.3, 7.4, 7.5 7.6 Sections 7.2,
7.3, 7.4, 7.5 7.6
 Tax Matters
 Consolidated Returns
 Separate Company Pre-Closing Tax Period Returns Section 7.8(b)
 Separate Company Straddle Returns. Straddle Period
  Section
7.8(c)(i)(2)
  37




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Cooperation on Tax Matters
 Section 7.8
  Certain Taxes
 Tax Sharing Agreements
  38




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Conduct of the Business Following the Closing
 Uncollected Accounts Receivable Section 10(a)
 Conditions Precedent to Obligations of the Purchaser
 Required Consents
 Transaction Documents
 Representations and Warranties; Performance of Obligations Officers Certificate
 Material Adverse Changes
  39




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Legal Matters
 Director and Officer Resignations
 Key Employees
 Financial Statement Audit
 Conditions Precedent to Obligations of the Seller Parties
 Transaction Documents
 Representations and Warranties; Performance of Obligations Purchaser Officers Certificate
 Indemnification
 By the Sole Stockholder Article 10 Indemnified Purchaser Party
 Damages
   40




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Section
7.8(b) Section 7.8(c)
    Section 4.9 Section
7.8
     Section 2.5
  41




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Section
10.1
 By the Purchaser Article 10 Indemnified
Seller Party
    Section 10.2(a)(iii)
  Section 7.8
 Section
10.2
 Procedure for Claims
 Article 10 Indemnified Party Claim Notice Indemnitor Unliquidated Claim Liquidated Claim Notice Claim Response Response Period
  42




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Article 10 provided Article 10 Article 10
 Section
10.3(b)
 Deductible Amount Section 10.1(a) Cap
   43




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Article 10
 Claims Period Article 10 Section 10.3 Section 10.4 Article 10 Expiration Date
     Third Party Claims Article 10 Action provided however provided further Section 10.5 Article 10
  44




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Effect of Investigation or Knowledge Section 10.1
 Survival Period Section 10.4
 No Contribution/Indemnification Article
10
 Contingent Claims Contingent Claim provided
 Public Announcements
 General Matters
 Contents of Agreement
 Amendment, Parties in Interest, Assignment, Etc. Article
10
  45




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Further Assurances
 Interpretation
 Counterparts
 Negotiated Agreement
  46




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Severability
 Remedies Article 10 provided however Sections 7.2 7.3, 7.4, 7.5 7.6
 Notices
   
  
  47




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Governing Law
 Article 14
  48




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General Release
 Releasors Released Parties Released Claims provided however Article 10
 {Signature Pages to Follow}
  49




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E-DIALOG, INC.,By:
    /s/ John E. MacPheeName:
    John E. MacPheeTitle:
    Chief Financial OfficerMBS INSIGHT, INC.,By:
    /s/ Richard PaneName:
    Richard PaneTitle:
    PresidentWORLD MARKETING, INC.,By:
    /s/ Richard PaneName:
    Richard PaneTitle:
    EVP