About.com
provides links to forms and advice to help evaluate your invention.

Intellectual Property Network
offers patent and other documents for free.

STO's Internet Patent News Service
addresses problems with patenting, legal issues, and court rulings.

U.S. Copyright Office
provides searchable information on copyright publicationss, regulations, and records.

U.S. Patent and Trademark Office Patent Databases
free searchable databases; includes the US Patent Bibliographic Database and the AIDS Patent Database.

U.S. Patent Law
overview from the Cornell University Law School.

United States Patent and Trademark Office
provides helpful information, forms, and guides for independent inventors.