Alot of sites ont he internet are quite useful and interesting but just aren't popular because the word about them does not spread...
Hoping to change that...
WiFi Locations
Listing of alot of WiFi spots...NOT RESTRICTED TO USA....
del.icio.us
Well, not that unknown, but a great site none the less....
OGame
It is the space version of Vendetta. My definite choice.
Squarespace
A cross between Blogger and GPC. Neither and both. I would reccomned this to bloggers though.
Vendetta
If you played OGame this is just like that except not plantes but mafia, and for those who haven't this is an online "strategy" game...check it out...
Meebo
An online messenger with wuite a friendly GUI and with any protocol including of course GTalk.
Bravenet
Used in developing in pretty much any site on Google Pages, it offers all kinds of different things for your website. Might have a page dedicated to this.
Button Generator
Very good button generator, where you can either have free buttons or you can become a member and then edit all the buttons.
Typepad
This is a legendary weblog "provider".
Newgrounds
The best of the best of flash animations and other cool stuf are on this site.
Game Winners
The selection of cheets, waolthroughs and other helping materail for almost any game ever.