Abstract: Internet-based commercial network connects multiple qualified participant buyers and sellers. Items are made available for defined periods of time, referred to as an event (139). Event terms and conditions include item types, price, quantity, volume or units, discount, shipping terms (138). Reiterative offer and counteroffers permit negotiation of terms for an event. Participants may view anonymous competitive quotes for comparison and analysis. Pooled purchases and auctions are envisioned. Participants may create web presences and are subject to restrictions on access (141) and purchase (142) authority. Central system maintains participant data.