EXHIBIT 2.1 AGREEMENT AND PLAN OF REORGANIZATION BY AND AMONG INFOSPACE.COM, INC. WIND ACQUISITION CORPORATION ZEPHYR SOFTWARE, INC., THE PRINCIPAL STOCKHOLDER OF ZEPHYR SOFTWARE, INC. AND CHASEMELLON SHAREHOLDER SERVICES, L.L.C. October 22, 1999...Agreement and Plan of Reorganization • January 6th, 2000 • Infospace Com Inc • Services-computer processing & data preparation • New York
