Wikipedia
EComXpo
eComXpo is a free online virtual tradeshow for search, affiliate and internet marketers.
Visitors have the ability to engage other visitors of the conference directly and communicate with each other and exchange contact information with exhibitors and other visitors. Those are common activities from real world trade shows, transported to the Internet.
European presence was strong in the inaugural show. Participants cited the savings of time and money that online trade shows provide as the reason for their participation. Exhibitors treat the online event just like a normal convention in the real world.
The panel discussions are broadcast via Internet radio by WebMasterRadio.fm and available in MP3 format and as a podcast XML feed.