I came across an interesting site called elance. Basically its a website that connects freelancers with people who need work done. From marketing, logo design, to drafting, the site has a wide varity of users. My understanding is that you create a profile, and bid on jobs - and just like the "real" world - landing the first is the hardest. But once you get an "elance" reputation, you can build up a good bit of business.
There are definately CAD jobs that I could see bidding on, and designers could probably get into some graphic work fairly easily. It looks like a nice option for additional income on a part time basis that isn't on the shady side.