Creative TLD Use?
brk: I'm not a big fan of "trite" urls making use of .us, .me, .foo extensions unless it's for a trivial application (ie: non commercial).  Trying to tell someone "Have you used delicious?... No, DEL dot icio dot US.  No, it's in the .us tld, with del. instead of www.  Here, I'll write it down for you.  Fuck it..."For the education market, which IME, is not exactly at the forefront of technology understanding in a lot of cases, I wouldn't get too creative there :)