This one; http://news.ycombinator.com/item?id=2668346 http://news.ycombinator.com/item?id=2668346 There are actually a few startups mentioned there which fall

This one; http://news.ycombinator.com/item?id=2668346 http://news.ycombinator.com/item?id=2668346 There are actually a few startups mentioned there which fall in the category that the poster is looking for.