I just visited neopets and I made a pet there. I don't know how often I'll visit the site or how well I'll take care of my pet, but it's a cool concept. It's like the virtual version of those little handhelds, the Tamaguchi (sp) pets. Very neat. I hear they have like 45 million reigistered users @ neopets!
I search through google.com almost everyday. You can't beat that site for searching. I enjoy the chat here @ spongezone (hope it comes back soon--trivia was nice). I also visit spongebob area, spongebob online, fairly odd parents net, sarah's spongebob shrine, pineapple under the sea club, nintendojo, wormbaby.com (invader zim), and pojo.com.