Use fllwrsto monitor changes in your Twitter followers over time and keep a history of followers that have been lost or added. Would you like to see a record of who follows and unfollows you every day? Would you like to get notified when someone unfollows you?
If you're thinking about getting a website, you will want to have a good domain name. However, trying to find one that isn't taken can be a real pain. This is where Nominus comes into play. Type in some concepts and Nominus will check through available domains and try and come up with some good ones for you. It will do top level domains, country based domains, domain shorteners and generic top level domains.
If you want to find other stuff based on stuff you like, then there are a few options for you, and the latest of these is Itcher. Basically you give it information on things you like; Films, Books, Music and Games. Start with a minimum of 5 recommendations of things that you like, and it pops up more for you. obviously the more that you add, the better the recommendations that you'll receive.
It worked ok for me, but I was confused at times because I thought I was rating things and it turned out that I wasn't. It also didn't find some obvious films either. However, it's worth trying out.