Salloum wroteHybrid wroteMaybe work as a freelance, elance.com...
As for myself, I make money from my 2 favorite hobbies, eating as a mystery shopper, and managing/securing Linux web servers.
Just out of curiosity, how did you land the mystery shopper gig? Can anyone become one?
You just have to apply to different places/restaurants, and hope they hire you... I didn't have any experience as a mystery shopper when I applied, I just sent my professional (computer science/web development) CV and after 2 months I got a phone call saying I'm accepted.
It doesn't really make money, but you get free food (limited budget), and you have to fill a long report everytime and pay attention to details etc..