The other day we spoke about Hashtags and how the Tweet shorthand can make searching for topics easy. I found this hashtag search engine that lets you find other Twitter users talking about topics that you want to follow. For example, do a search for “internetsafety” and you’ll find a bunch of users talking about that subject. If you like what you see after you find their profile, start following them!
Search Hash Tweeps
http://hashtweeps.com/