• United States Patent & Trademark Office -- www.uspto.gov
• US Copyright Office -- www.copyright.gov
• San Francisco Bar (Volunteer Legal Services Program) -- www.sfbar.org
• California State Bar Association -- www.calbar.org
• New York State Bar Association --- www.nysba.org
• ASCAP (music licensing organization) --- www.ascap.com
• BMI (music licensing organization) --- bmi.com
• SESAC (music licensing organization) --- www.sesac.com
• Motion Picture Licensing Company (motion picture clips licensing organization) --- www.mplc.org
• Copyscape --- (is someone copying your online content) --- http://copyscape.com/