I think that I am in the same situation as you are. I study all kind of stuff especially in the computer-related area and I entertain the idea of working as a freelancer myself. So, just out of curiosity, I did a search on Google to find out about the ways one freelancer could use to promote himself and I have found a LOT of useful websites out there, most of them being websites where you can post your resume or to create a profile. Some of them are general, others are centred on niche activities.
So my advice is this: just do a Google search with the terms - freelancers websites - and you should see several of the most important freelancer websites and also a bunch of article titles sounding like this: "10 (or 15, or 50) great websites for freelancers". In those articles you will find lots of freelancing websites and also interesting information about each one of them.
Soon you will realise that not only you can easily promote yourself as a freelancer, and thus you can easily find new people to work with, but also the ways are so many that you will have to choose only several of them, only several preferred websites. Or, if you have the time and the patience to upload your resume and to be active in all of them, that's no problem!
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link below the post, so we'll see how it goes. Sorry it took so long to reopen this and hope this helps!