Open Source Links
The first time I ran Linux was in early 1994, In 1995-1996 I switched to it as my primary OS, and I've used it as my primary OS since then.

Since then lots of interesting things has happened and Linux has become a major player.

In 2006, I went to Mac as my desktop OS. It has been an interesting experience.


One of the first things I did when going to Mac, was to find out about a few VERY good opensource applications.
A good starter is http://www.opensourcemac.org/

I have also been involved in Bazaar since sometime in 2005 (By involved, it means that I have mostly been lurking and bugging the developers :) ).
Bazaar is a distributed revision control system that really rocks. There are many of them popping up now, but I think Bazaar is the most interesting one for the future.

Also, check out my bzr extmerge plugin.