Define "Anything" ?
In otherwords how much dyu know about it at the moment?
http://www.pathfinderwiki.com/index.php?title=Main_Page
httpPage://heroesofgolarion.pbwiki.com/
Maybe these two links can start you off a bit?
I would recommend the Pathfinder Chronicles: Gazetteer, here.
Also, the actual Hardcover Campaign Setting will be out very soon!
The PathfinderWiki is a good source too.
Paizo's blog is another. You'll have to scroll through it, but the info is there.
Hope this helps!
And a map. Golarion.
Here is a rough pic of the part of Golarion they're detailing in the Gazateer and in the hardback Campaign setting book.
EDIT: ninja'd by Varisian Wanderer...
Well done wanderer. I have that map on my hard drive but I couldn't find it anywhere in the website!
Thats a good map to show you the basic layout of the region. If you have the first few Adventure paths (which I assume you dont? :-( )then there are good details about Varisia in them.
Edit:
D'oh, double ninja'd lol
The final version of the map we linked to above is available as a 4-panel poster map in the Gazateer.
And keep in mind the online map linked to in this post, ISN'T the final version, there were some small changes made to the final. i.e. sarkoris/worldwound.