Thing 10

I explored some of the wikis listed in 23 things on a stick. I especially enjoyed the MN 150 wiki. However, as with many of the other things we have explored, I find that there is so much to sort through that I end up feeling I am in information overload. I haven't figured out how to narrow down the topics and as a result end up spending far too much time wandering through the sites.

How have others focused their searches and improved their use of time?