I’m a little late in finding out about this but the concept looks very interesting. In a nutshell edgeio looks at blogs and websites looking for posts that have been tagged as “listing” when it finds them it pulls them into one place so that people can find it and then contact to buy it.
From the site:
A blogger can publish an item for sale and have it listed on edgeio within a matter of seconds. An auto dealer with an RSS enabled website can publish their inventory in real-time to edgeio’s network. Using tags indicating location, realtors can reach buyers in specific communities around the world. Podcasters and video bloggers, can use tags to describe their work making it easily discoverable in the edgeio network of websites.
I think that this is a really cool way to look at the web and use all the data that is being created. I think that the hard part is going to be getting a strong userbase and stopping the spam junk from cluttering up the space. But the idea of being able to sell stuff locally just by posting a blog topic about it is very cool. Tie in some Google Maps location stuff and it really starts to get interesting.
This is one site that I will be watching.