Well, I'm a complete convert when it comes to press release distribution - or at least I'm convinced the free services are worth using.
Initially I was sure that anything press release related that was completely free had to be useless...but then I gave a few of the many free services a try and was quite impressed by all of them!
So - while I previously reviewed a paid service as my distribution point of choice, these are my new favorites:
MediaSyndicate
PR9
PR.com
PRLog
While they're all 'good' services, I liked PR9 and MediaSyndicate the best for the simple fact that they wound up on Google News and MediaSyndicate allowed for hyperlinks at no extra charge.
(Feel free to add your own to the list!)