When a coder produces a video game render, it is a relatively isolated item that can be placed under different contexts.
Bidding sites like Rent a Coder and Guru also have a number of job opportunities for Web content writing, although the pay can be rather low.
If you're interested in performing project based freelance writing, you might want to consider registering with Rent A Coder, where you'll search job boards and bid on jobs for clients from all over the world.
There are also websites such as Guru, Rent A Coder, and Get A Freelancer which allow work at home moms to bid on projects of interest.
Sites such as Craig's List, Guru, and Rent a Coder often have ads from people in search of freelance writers, although the pay for many projects tends to be rather low.