Free (CC-BY) Website & WordPress themes
Some days ago I ran into some free software project website which used an Arcsin template. The themes on the site seem to be pretty neat, and best of all, free to use for any purpose (the author merely states that the attribution part must be done by linking back to the website).
Anyway, I suggest to check these out – there is a nifty preview feature as well, so no time wasted trying out something that you wouldn’t like. 
I’ve changed this blog to use the Colorvoid theme for now…
Update 2008-11-16: Okay, there is one serious flaw (in my opinion) in these themes. And that is the fact that they are fixed-width (including images, so it’s not a trivial task to fix them). The smileys also appear in boxes that disrupt the text flow, which is quite annoying.
