Anybody know any good "indie games"?

As a game development student, I've been working to expand my knowledge and library of independently created/published or "indie" video games and have come to a standstill on finding other great games I should look into.

Here's a list of indie games I've played and/or am familliar with already (in case you need to know, or want a look for yourself):

-World of Goo

-flOw

-Kingdom of Loathing

-da blob

-Cave Story

-Alien Hominid

-Gish

-Castle Crashers

-Synaesthete

So, got any suggestions?

By the by, I'm not restricting to purely indie games, any games with the same sense for originality will do also.