I started following him http://twitter.com/brentrowland because he is
the ruby Firebird extension maintaner also he writes some really
interesting tweets

http://www.pointyhairedgeek.com/2008/04/looking-for-mouse.html

http://github.com/rowland


ps: 1.I usually follow friends and people with interesting tweets (not
like the cheese is dark, michael is dead and so on)
2.it's hard to find his posts on tweeter about firebird (i wish they
had a blogger search bar interface)