Freeroles.

[MrDarling]

google freeroll tracker and you'll find plenty of sites that list all current freerolls and the requirement to play in them.

As for FullTilt freerolls, they do fill up quick. But if you are ready on the tournament lobby the second they open for registration , more often then not you'll make it.

Fulltilt also have a 90 player S&G , that lead to some grand prize (you need to win or first 3 on the first stage, top 150 on the 2nd and 3rd stages and then win the last stage)

on Pokerstars you can also play freerolls without a real account, they are big and almost always only get you into 2nd stage where you can win a little money if you ...mmm... win