It's been mentioned around here and there, but I thought it deservers its own post. I've been working over the past months on a board game recommendation engine: https://recommend.games/
If you have a BoardGameGeek account, just type in your user name and you'll immediately find personal recommendations based on your ratings.
If you don't have a BGG account, just select games you like and we'll find recommendations based on your taste.
Recommend.Games is still in a pretty early stage, so any thought, comments, suggestions are highly appreciated!
PS: you'll spot links to BGA on the game pages, and I definitely intend to integrate its great services further... :-)