The following links might lead to useful information:

Intellectual Property - generally

• Franklin Pierce Law Center's IP Mall
• U.S. Patent and Trademark Office
• Patent Cafe

Patents

• U.S. Patent and Trademark Office - Patents
• Patent Cafe - Patent Business Center
• Delphion, Inc.

Trademarks

• U.S. Patent and Trademark Office - Trademarks
• Patent Cafe - Trademark Business Center

Copyrights

• U.S. Copyright Office
• Patent Cafe - Copyright Business Center

Domain Names

• Register.com
• ICANN

International IP

• Links from USPTO