Social or community powered search has been attempted a number of different ways but Delver, an Israel based startup, looks to leverage users' social graph to create relevant social search results. I got a preview of Delver at DEMO08 and again at the 2008 IsraelWeb Tour. Delver recently launched its open alpha product for all the World to use. Delver offers web, media and people search function. My first impression: Interesting.