I will join designer for hire program here on shapeways. I would like to add that to my facebook and twitter in description on my job. Something like "freelance 3Dartist and designer at shapeways". I wonder, am i allowed to do that, even do i know this is not actual employment? I believe it would help me to bust my hire rate. Which is ok now, but i have room for more work.
Designer at Shapeways sounds like you would really work there and might be misleading. Designer for hire is more part of the Shapeways community.