The world of minecraft has ten times the surface area of the earth. I really don't think we'll run out of resources to exploit. Not that exploring that far on a server is a great idea >_>...
Anyways, I'll be on in a while, I've got some things to do first though.
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http://desmond.imageshack.us/Himg26/scaled.php?server=26&filename=jeffreyraze.png&res=medium