When I was learning Ruby & Rails my co-founder told me about http://ruby-toolbox.com http://ruby-toolbox.com, and while it's still not perfect for beginners, it

When I was learning Ruby & Rails my co-founder told me about http://ruby-toolbox.com http://ruby-toolbox.com, and while it's still not perfect for beginners, it goes a long way to solving the "what to google / what to use" problem. If you have a very basic idea of what you're trying to do it can generally suggest a few options to use (gems). I've also used it to work out the category of the problem I'm trying to solve. I'd love suggestions regarding more sites where you can search in a problem space as opposed to a specific bug or issue.