Many years ago I saw a fairly dodgy looking ad asking for someone to write revision material for GCSE IT. I emailed to find out more, found out it was for BBC Bitesize (very popular free internet based revision guide in the UK) and spent the summer writing it. Being able to name drop the BBC helped get further jobs and I've send some cheeky cold-calling emails to see if companies are looking for writers etc. Sometimes they are, often not.

I'm always on the lookout for freelance work. Should anyone need a writer with technical knowledge then my email is in my profile!