A large share of eBay is a consumer to consumer website. It is also a business to consumer and a business to business website.

There are seven models of e commerce they are

1) Business to Business (B2B)

2) Business to Consumer(B2C)

3) Consumer to Consumer (C2C)

4) Consumer to business (C2B)

5) Business to government(B2G)

6) Government to citizen ( G2C)

7) Government to Business (G2B)

The business provides what the consumer wants or needs.

A Trade show can be business to business selling or business to consumer selling. Typically business to business. Consumer show is business to consumer selling/marketing

I have been to a lot of shows and wouldn't be nearly successful if I hadn't done a ton of research first.