Yeah, that also gets sent to schools. It's the CSS profile. You need to fill it out, and then they'll email you telling you to print out a form, photocopy tax returns and stubs, etc, and send it all in. You'll need your parents' information primarily, but yours too if you 're planning on filing a tax return.
And unlike the FAFSA, the profile is *not* free. Partly because it's with the college board (extortions 'r us!).