OpenFreecycle is an attempt to make community sharing of free, unwanted items much more easy and widely accessible. Like eBay, for free.
However, the Freecycle network operates as a collection of closed, private Yahoo Groups mailing lists. We want to build an open system: searchable, with feeds, and available to mashup with Greasemonkey in shopping sites, eBay, etc. "Don't buy this item, you can get it for free in your local community".