I need/want a website that can tell me the relative popularity/activity of libraries (and possibly tools) in the same problem domain.
For instance: I'm trying to find a C++ networking library that is well supported. The problem is: there are so many of them!, which one is the more popular one?
My reasoning is that the more popular/active library is more likely to be better supported, of higher quality and overall 'healthier' than the lesser popular one. (Group intelligence, anyone?)