Often i see this site

Getafreelancer

for a job online or to submit a job.

To Use the Internet network for search or to submit a jobs online i think is a good idea.

All the world can pick up my job, or i can pick up a job that i prefer, that i'm specialized.

Another example that i use often is

Getacoder

How do it ?

The buyer post a job with a little description, the provider (freelancers) bid with a price and with a time to develop a job.

The buyer have a couple of days to choose Interacting with the bidders.

At the end of the bid period he choose or retire the job.

It's a very Interesting idea, because is possible to know more people in the world and is economic because the global market meet people from rich america , rich europe with poor est europe, poor asia etc.

Test it