Justin, I like your idea behind "circl.es": people already are generating a lot of data, there is no need to ask for more.
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
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