> Oddly... I have grown rather weary of them. That's what makes the problem so interesting! Most recommendation systems are terrible, and those that aren't, ar

> Oddly... I have grown rather weary of them. That's what makes the problem so interesting! Most recommendation systems are terrible, and those that aren't, are good only for the first 1-2 recommendations. And then there's Google Search, which so thoroughly demolished existing search result recommendation systems (remember Altavista?) that they now own the market and are one of the most valuable companies in history. When you finally solve a recommendation system problem in a way that actually works, it's a huge freaking deal!