Check this out ..

http://www.netvibes.com/ - Here you can create your own customized "portal page".

It's in the same way http://www.google.com/ig looks .
But in my opinion it looks even better and gives you more control over the
so called "webparts" .

Do you know more sites like these ?

(Update 04/03/06) - I've also discovered the http://www.pageflakes.com