I really like StackOverflow.com and the concept itself.
The problem is that I can't seem to have an efficient way of finding questions I can answer.
I thought that by listing down my knowledge topics as my tags, it would be enough: java, extjs, kerberos, etc. It turns out I get tons of questions which are Java, but related to Android, or Kerberos but related to embedded systems.
I started filtering them out by placing tags under Filter Out tags, but it didn't help: First it only greys it out, which is not convenient. Second, I still get lots of questions not related to my topics, which means I need to add about 10–20 more tags to Filter Out tags.
So I'm asking you guys, is there a better, more efficient way, of getting questions I can answer based on the topics I know (which of course I will input somewhere)?