Exhibit 3.81
 (E-FILED LOGO)
    
    Colorado Secretary of StateDate and Time: 11/07/2006 03:25 PMDocument processing fee
    
    
    
    Id Number: 20061456348If document is filed on paper
    
    $125.00If document is filed electronically
    
    $  25.00
    
    Document number: 20061456348Fees & forms/cover sheets
are subject to change.To file electronically, access instructions
for this form/cover sheet and other
information or print copies of filed
documents, visit www.sos.state.co.us
and select Business Center.Paper documents must be typewritten
or machine printed.
    
    ABOVE SPACE FOR OFFICE USE ONLY
 Articles of Organization
  1. Entity name:
    
    McDash Analytics, LLC(The name of a limited liability
company must contain the term or abbreviation limited liability
company, ltd. liability company, limited
liability co., ltd. liability co.,
limited, llc, l.l.c., or ltd.§7-90-601, C.R.S.)2. Use of
Restricted Words (if any of these
terms are contained in an entity name, true
name of an entity, trade name or trademark
stated in this document, mark the applicable
box):
    
    o bank or trust or any derivative thereof
     o credit union      o savings and loan
     oinsurance, casualty, mutual, or surety
 3. Principal
office street address:
    
    1601 Arapahoe Street(Street name and
number)9th FloorDenver
    
    CO
    

    80202(City)
    
    (State)
    
    (Postal/Zip Code)United States(Province  if applicable)
    
    (Country 
if not US)4. Principal office mailing address(if different from above):
    
    (Street
name and number or Post Office Box information)(City)
    
    (State)
    
    (Postal/Zip Code)(Province  if applicable)
    
    (Country 
if not US)5. Registered agent name (if an individual):
    
    Jadlos
    
    James
    

    L.(Last)
    
    (First)
    
    (Middle)
               
(Suffix)OR (if a business
organization):6. The person identified above as registered agent has consented to being so appointed.7. Registered agent street address:
    
    1601 Arapahoe Street(Street name and
number)9th FloorDenver
    
    CO
    

    80202(City)
    
    (State)
    
    (Postal/Zip Code)ARTORG_LLC
    
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    Rev. 11/16/2005




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8. Registered agent mailing address(if different from above):
    

(Street
name and number or Post Office Box information)(City)
    
    (State)
    
    (Postal/Zip Code)(Province  if applicable)
    
    (Country  if not US)9. Name(s) and mailing address(es)
of person(s) forming the limited liability company:(if an individual)
    
    Jadlos
    
    James
    
    L.(Last)
    
    (First)
    
    (Middle)
    
    (Suffix)OR (if a business organization)1601 Arapahoe Street(Street name and number or Post Office Box information)9th FloorDenver
    
    CO
    
    80202(City)
    
    (State)
    
    (Postal/Zip Code)United States(Province  if applicable)
    
    (Country  if not US)(if an individual)(Last)
    
    (First)
    
    (Middle)
    
    (Suffix)OR (if a business organization)(Street name and number or Post Office Box information)(City)
    
    (State)
    
    (Postal/Zip Code)United States(Province  if applicable)
    
    (Country 
if not US)(if an individual)(Last)
    
    (First)
    
    (Middle)
    
    (Suffix)OR (if a business organization)(Street name and number or Post Office Box information)(City)
    
    (State)
    
    (Postal/Zip Code)United States(Province  if applicable)
    
    (Country 
if not US)
 (If more than three persons are forming the limited liability company, mark
this box o and include an attachment stating the true names and mailing
addresses of all additional persons forming the limited liability company)
 þ  OR o
  ARTORG_LLC
    
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    Rev. 11/16/2005




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12.
    
    (Optional)Delayed effective date:
    
    
    .(mm/dd/yyyy)13.
    
    Additional information may be included pursuant to other
organic statutes such as title 12, C.R.S. If
applicable, mark this box o and include an attachment stating the
additional information.
    14.
    
    Name(s) and address(es) of the individual(s)
    
    Jadlos
    
    James
    
    L.causing the document to be delivered for filing:
    
    (Last)
    
    (First)
    
    (Middle)
    
    (Suffix)1601 Arapahoe Street(Street name and number or Post Office Box information)9th FloorDenver
    
    CO
    
    80202(City)
    
    (State)
    
    (Postal/Zip Code)
 (Province  if applicable)
    
    United States
(Country  if not US)
 (The document need not state the true name and address of more than one
individual. However, if you wish to state the name and address of any additional
individuals causing the document to be delivered for filing, mark this box o and include an attachment stating the name and address of such individuals.)
 Disclaimer:
  ARTORG_LLC
    
    Page 3 of 3
    
    Rev. 11/16/2005