Over at idsgn is a great article on these symbols I keep using, where they come from, and even where I got a bunch of them (shhhh).  Interesting for any graphic design people out there, and anyone who’s had to spend a little too much time in airports and train stations.  Link.

Oh, theres also a link at the end of the article to an “expanded set” (link) that I would LOVE to get my hands on. Anyone got any leads?