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  **SECURITIES AND EXCHANGE COMMISSION****WASHINGTON, D.C. 20549****FORM 10-Q/A****Amendment No. 1**   þ **Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934****For the quarterly period ended March 31, 2005****or**   o **Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Actof 1934****For the transition period from                     to                     ****Commission File Number 0-19598****infoUSA INC.** (exact name of registrant specified in its charter)   DELAWARE 47-0751545   (State or other jurisdiction of (I.R.S. Employer Identificationincorporation or organization) Number)   5711 SOUTH 86TH CIRCLE, OMAHA, NEBRASKA 68127   (Address of principal executive offices) (Zip Code)Registrant’s telephone number, including area code (402) 593-4500N/A (Former name, former address and former fiscal year, if changed since last report)Indicate by check mark whether the registrant (1) has filed all reports required to be filed bySection 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or forsuch shorter period that the registrant was required to file such reports), and (2) has beensubject to such filing requirements for at least the past 90 days.   Yes þ   No o Indicateby check mark whether the registrant is a large accelerated filer, anaccelerated filer, or a non-accelerated filer. See defination of “accelerated filer andlarge accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):Large accelerated filer**£**   Accelerated filer**£**   Non-accelerated filer **£**Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule12b-2 of the Act). Yes þ No oIndicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 ofthe Act). Yes o NooAPPLICABLE ONLY TO CORPORATE ISSUERS:Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as ofthe latest practicable date.53,687,084 shares of Common Stock at May 2, 2005  
 

**EXPLANATORY NOTE**On May 10, 2005, infoUSA Inc. (the “Company”) filed its Quarterly Report on Form 10-Q for thequarterly period ended March 31, 2005 (the “Form 10-Q”). The Company filed the certificationsrequired by Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended, as adopted pursuantto Section 302 of the Sarbanes-Oxley Act of 2002 (the “Section 302 Certifications”) as Exhibits31.1 and 31.2 to the Form 10-Q, but unintentionally omitted certain required language fromparagraph 4 of the Section 302 Certifications. The Company is filing this amendment to the Form10-Q to provide new Section 302 Certifications containing the required language. None of theinformation previously disclosed in the Form 10-Q is modified by this amendment to the Form 10-Q.**TABLE OF CONTENTS**
 SIGNATURESINDEX TO EXHIBITSCertification of CEO Pursuant to Section 302Certification of CFO Pursuant to Section 302

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**SIGNATURES**Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly causedthis report to be signed on its behalf by the undersigned thereunto duly authorized.      infoUSA INC. Date: February 21, 2006 */s/ Stormy L. Dean*   Stormy L. Dean, Chief Financial Officer   (principal financial officer)  
 

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     **INDEX TO EXHIBITS**     31.1* — Certification of Chief Executive Officer pursuant to Section 302of the Sarbanes-Oxley Act of 2002. 31.2* — Certification of Chief Financial Officer pursuant to Section 302of the Sarbanes-Oxley Act of 2002. * Filed herewith