While we're playing with logos, I should not that Wikipedia also needs a favicon.ico file.

What this is:

When people bookmark wikipedia using Windows IE or Konqueror (KDE, typically on Linux), their browser requests 'favicon.ico'. This is then used as a fancy little symbol in the bookmarks list.

It's neat!

http://www.favicon.com/

Actually, this website has some free ones, but we should (as always!) check the license, because we'll probably want to redistribute it.