Graph Search – An Advertiser’s Wet Dream
https://news.ycombinator.com/item?id=6010089http://thoughtstream.quora.com/Graph-Search-%E2%80%93-An-Advertiser%E2%80%99s-Wet-Dream
http://thoughtstream.quora.com/Graph-Search-%E2%80%93-An-Advertiser%E2%80%99s-Wet-Dream