The last few years have seen the emergence of friend and business networks and users have raced to setup business connections and lookup old friends. How about taking a break and concentrate on building up a dream application for your family? MyHeritage.com, which provides sites to build your family tree and a family graph genealogy API, has extended its developer contest, that invites developers to build interesting applications within family networks.
Search engines such as Google have been making life a lot easier for developers. They have huge development resources that startups just don't have, and when they make their APIs available, everyone benefits. But when it comes to using APIs, especially AJAX APIs, it can be a challenge for developers to use these in a search-friendly way.