How many of you guys are working as freelancers? And which sites?

cadtutor.net has a jobs section in the forum.
peopleperhour.com is another one i use.
Obviously GRABCAD too

Nope not me still a student LoL'ss
but here is the link to the same question and
here is the links to web sites that are for freelance
work
http://grabcad.com/questions/anyone-knows-of-companys-hiring-for-freelance-cad-work

I'm always available for GrabCAD jobs :)

I am not freelancing, but have been hiring and found a lot of 3D designers and draftsmen at Fiverr.com.
If you are looking for opportunities, it is a worth a change and have a look.

According to this article:
https://all3dp.com/1/best-sites-3d-artist-freelancer-3d-modeler/

Upwork
Guru
People Per Hour
Freelancer.com
CG Trader
CGWorkr