EXHIBIT 4.3 AMENDMENT TO THE INFOUSA INC. 401(k) PLAN Effective February 1, 2001, the infoUSA Inc. 401(k) Plan (the "Plan"), Adoption Agreement section .09, is hereby amended as follows: "Participant Loans Participant loans (check (a) or (b)):401(k) Plan Amendment • November 9th, 2001 • Infousa Inc • Services-direct mail advertising services
