I added a badge to my left nav from RapLeaf.
They are building an independent reputation system. Initially they focused on buyers and sellers, taking what eBay has done for nearly ten years and abstract it away from a single site and out into the Internet. You can imagine how helpful this could be for buying/selling via craigslist.
Recently you can see signs that they are adding non-commerce related functionality — primarily the ability to say something like “I know Tim. I am endorsing Tim as a good person”
I’m putting it on my blog because I’m hoping to integrate it with Notches, the startup I’m building and I’d like to kick the tires with it as a tool over here on CoreyH.com.