1. Neopets
2. Runescape
3. Bored.com
4. MakeWebsites.com - NOTE: I do not recommend creating a website using this. I recommend using Google Pages, which I used to create this website. MakeWebsites.com has many interesting things to add to your website, though. (Thanks for pointing this out, Alvin!)
8. KnujOn
10. 