Finding Feeds

I looked at the 4 search tools listed, and I guess if I was really interested in a subject or...I don't know...had more time to surf the web, I might use some of them. I like when "most popular searches" are listed, which gives me ideas as well as alerts me to some things going on in current events that I'm completely ignorant about! I guess as a whole, I think its neat that these search tools are out there, but I personally will probably never use them - at least at this point in my life.