These electronic brokers use sophisticated software programs that match buyers and sellers.

The company is best known for its B2B marketplace which matches buyers and suppliers.

I match buyers and sellers and take a twenty percent commission.

But in researching this story, the new way to match buyers and cars became apparent.

It is now the largest international clearinghouse to match buyers and sellers of used personal computers.

Some of the inter-dealer brokers, who match buyers and sellers, were not online.

By putting up their own capital when they cannot match buyers and sellers, specialists help prevent big price swings.

Like most markets, London has been unwilling to take the next step, in which computers match buyers and sellers directly.

But computerized trading could be used to match buyers and sellers at low cost.

Their place has been taken, at least in part, by "electronic communications networks" which attempt to match buyers and sellers directly.