Please see my recent blog entries on the Scramble.
Certain companies will fax or email your information to residencies with unfilled positions. Although I cannot comment on all companies with Scramble services, generally I think it's better not to hire these businesses. You have the greatest incentive to be assertive about getting your background sent. Furthermore, the Scramble is a fast-paced system; you don't need a middleman to slow you down.
Contact me for help with your residency application. I'm conducting Mock Interviews every day of the week.