I usually keep about three tabs open, although it might change depending on my mood. Right now I've got two open.

And my favorite sites:

ZU Forums
Youtube
Konsolifin(A Finnish gaming site)
Anime6
IGN
Gametrailers
Gamefaqs
Bluelaguna
Stuckgamer
The Great Sea
Shattered Blades of Seireitei
Savepoint(A Finnish game store)
Nintendo Suomi
Game Revolution

And that's about it...

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