GMail 3rd Party Apps?

[Update]  Found one from the monster itself.  Neat!

Now that I'm all Gmail'd up, anybody out there have a list of 3rd party apps that are available for Gmail?  I've seen a few floating around the blogosphere from time to time, but didn't note them as I didn't have a need.

Oh, and if either of my 2 readers are counting, this is my hundredth post :-).  As a side note, I discovered a really cool hit counter site, check out www.statcounter.com.  It's FREE as well!