Back in 2003, I was trying to look for a old Perl script that allowed me to build online quizzes. It would do multiple choice, fill in the blank, and it saved everything to a flat file. Oh it was a pain to set up quizzes though. You got one part of the file format wrong and the entire thing would crash.
Well, found out that the person who made that script decided to not give it away free, and created his own online quiz company. Searching the net for anyone that was still using it, I had tracked the old script to a professor at UCLA. He told me he wasn't using that perl script anymore, - he was using something called Moodle that was so much better at quiz systems.
Well, that got me into PHP, MySQL, hosting... and probably that experience gave me more job opportunities.
I've been using it since 1.7 days... *sigh* back when Moodle ran really fast and required little server resources compared to the beast it is now.