This another Frankenpost from the previous version of the blog, but I'm adding new content to the end.

Mark James over at FamFamFam has made available to the public a free set of 1000 icons (nope, that's not a typo) called Silk.  It's just one of three currently available.  As you can see from this preview, the icons are high quality.

Here's the new part:
The reason I found the FamFamFam collection was that I needed some icons for HappyFish.  I love the collection and have spent so much time looking at them that I can spot one instantly.  That's why when I updated my installation of twhirl I recognized one of the FamFamFam icons on a little dialog advertising a new feature.  ScrewTurn Wiki makes use of them too.  I'm going to be using ScrewTurn for the new HappyFish wiki.  As for twhirl, I recommend it as a desktop Twitter client.  It has integration with FriendFeed which is a nice bonus.