EXHIBIT A FORM OF WARRANT EXHIBIT B Source: STAMPS.COM INC, 10-Q, 11/14/2000 AUTHORIZED EQUIPMENT: --------------------- A PC reasonably adequate to access and use the Service for manifesting and shipping packages, with the following minimum specifications: . a reasonably adequate scale and a label printer . An internet/network connection of at least 256k bits/sec . Processor: P5-233 . Ports: 2 Com ports, 1 Parallel port . RM: 64 Megs . HDD: 1.2 GB . Video. 4 MB . OS: Win 98/OSR2 . Browser: IE 5 SP1 EXHIBIT C POTENTIAL CUSTOMERS ======================================================================================================================= TYPE DEFINITION ---------------------------------------------------------------------------------------------------------------------- I A customer physically present in the retail store-front or remote off-site locations of MBE Centers for a In-Center Customer transaction in which they do not utilize an LMS or MBEX (as such terms are defined below). ---------------------------------------------------------------------------------------------------------------------- A customer utilizing a self-service lobby manifest II system in a MBE Center ("LMS") or a self-service --- Remote Self-Service Customer MBE-branded remote manifest system ("MBEX") for a ---- transaction. ---------------------------------------------------------------------------------------------------------------------- A customer shipping a PLD-compliant and ramp-ready III A package* through a MBE Center that is manifested MBE Internet Customer through the MBE Sites. ---------------------------------------------------------------------------------------------------------------------- A customer shipping a PLD-compliant and ramp-ready III B package through a MBE Center, which package is Company Internet Customer manifested through the Company site. ---------------------------------------------------------------------------------------------------------------------- A customer shipping a PLD-compliant and ramp-ready package through a MBE Center, which package is III C (1) manifested through the Internet web site of a third Third Party/MBE Customer party that is con-branded or otherwise affiliated with MBE. ---------------------------------------------------------------------------------------------------------------------- A customer shipping a PLD-compliant and ramp-ready package through a MBE Center, which package is III C (2) manifested through the Internet web site of a third Third Party/Company Customer party that is co-branded or otherwise affiliated with the Company or the Service. ---------------------------------------------------------------------------------------------------------------------- A customer shipping