http://www.socialsecurity.gov/employer/bsotut.htm
Social Security’s new online tutorial provides an introduction to Business Services Online. BSO offers step-by-step instructions for 10 business services available online, including:
▸ Filing Forms W-2 and W-2c online
▸ Access to Social Security Numbers Verification Service for wage reporting purposes
▸ Information for reviewing and correcting submissions and reports
