Indeed, google scholar and similar citation graphs are amazing. It makes tracking down vaguely relevant papers much easier than in the past. I can skim a few dozen papers one day, and then more closely inspect the handful that seem most relevant or interesting.

I wish that google scholar showed bidirectional links though. I suspect they might have concluded that the list of citations included in a particular paper is part of the content of the paper (not just metadata) so that showing it might infringe copyright.