Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
uBuyFirst - Advanced eBay buying software finds newly listed "Buy-It-Now" items first!
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
UnderMRKT - UnderMRKT is a popular platform that provides instant notification about new and accurate eBay listing items.
Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.
Gixen - Free online service that places bids (similar to eBay) in the closing seconds.