Gmail Users - Not the Most Attractive?
blog.circl.es
blog.circl.es
If you need help with your data just email me.
Note to self: data mining web app, it seems to use simple a similarity measure, same idea can be used for recommendation engine [Twitter + Facebook + Pinterest, etc ... to get good vector representation for each person, then clustering (probably non-convex variable density or not), and assigning recommended items from a cluster to all people in that cluster]) - product recommendation is not much different than dating