Previous submissions of relevance:<p><a href="http://news.ycombinator.com/item?id=1595995" rel="nofollow">http://news.ycombinator.com/item?id=1595995</a><p><a href="http://news.ycombinator.com/item?id=1595526" rel="nofollow">http://news.ycombinator.com/item?id=1595526</a><p><a href="http://news.ycombinator.com/item?id=1592416" rel="nofollow">http://news.ycombinator.com/item?id=1592416</a>