I am agree with shabbir. It is about creating profile at different website. Some of websites specially allow us to creating profile. Profile submission is about to submit our business profile at various websites.
I have question hare..is it really worthful to our site. Cause google panda updation has been done, and I think profile linking is not much good for our site according the panda.
Free Profile Website Lists: http://www.joystiq.com/ http://venturebeatprofiles.com/ http://www.fanpop.com/