Sergiy Bidnyi authored the eBay SDK for on Github with the aim to develop applications easily in .NET language. Contact Sergiy to find out more information about possible application development projects.
At the beginning of 2011 we reported that Collect had decided to drop it's API in order to change their offering to something more profitable. But now ReadWriteWeb have reported the disappointing demise of Collecta. This has the potential of being the first big failure of a well funded real-time web focused company, so questions need to be asked about why this happened and why Collecta weren't successful. Back in January of this year we asked "Is It Finally the End for Real-time Search Engines?" and it now looks like that very question is being raised again.