Official Government Patent Sites:
The United States Patent and Trademark Office:
World Intellectual Property Organization:
European Patent Office:
Japan Patent Office:

Courts of Law:
United States Court of Appeals for the Federal Circuit: The Federal Circuit has nationwide jurisdiction in patent and trademark cases.

Relevant United States Patent Laws, Rules, Guides:
Patent Law, United States Code Title 35:
Patent Rules, Title 37 of the Code of Federal Regulations Patents, Trademarks, and Copyrights:
Manual of Patent Examining Procedure (MPEP):

Legal Professional Organizations:
The American Intellectual Property Law Association (AIPLA):
The American Bar Association (ABA):

Office Technologies for Small Firms:
Foundation IP, a web-based intellectual property management system for law firms and clients that provides an online environment to manage matter-related information and activities:
Carbonite, online file backup program:
EFS-Web, the United States Patent and Trademark Office electronic filing system: