Sososo anyway this is an official greeting from a user who may or may not be a admin/sysop/werewolf so here come the obligatory links to pages to help you out and tell you "Don't be teh vandal kthx":

A beginner's guide is here;
If you want more info on ?pedia, tis right here, and I particularly reccommend you read the "Illogicopedia in comparison to other wikis" section in case you come from Uncyclopedia or other wikis;
A less sensible explanation of our beloved 'pedia is here;
our general disclaimer is there-> LOOKIE
Don't be afraid to visit us on IRC.
The rules, such as "ROFL KILL THE BABIESN'T PLZN'T (notn't)" are here. People breaking the rules will have a Koala thrown at them, and possibly a Chinese burn.

So that's it all I hope... please be nice, make great articles and help contribute to our community in any way possible: e.g. template making, voting for articles or users, et cetera.