I have some GPL'd software & scripts
I created and host on this site. It also contains my ever-growing .bashrc which has some rather useful utilities.
Take a look at my embedded development page
for links to some great technical info including software and hardware development.
Read my Linux page
for a quick introduction to the most popular open source project in the world!
If you are in search of Perl help I have a directory full of great Perl references and manuals