eBay was probably my first experience with social computing -- if you can really call it that. eBay is a community of buyers and sellers that for the most part control the environment (what the buy and sell). Like Realneo, eBay users have a profile and choose what personal information to reveal, they post pictures, and writing (though in the form of descriptions of things they are selling). After several years of using eBay on and off to buy and sell, I feel like I don't really understand how eBay is working in an economic sense. Maybe you have some insights? Please post them!
Have you used eBay?
What was your experience like?
Has eBay changed the market for anything?
Has eBay enabled people in entrepreneuerial activities?
Has eBay changed significantly since it started?