Intellectual Property links:

U.S. Patent & Trademark Office

Copyright Office

ICANN (Internet Corporation for Assigned Names and Numbers)

International Trademark Association

New York links:

New York State Department of State

New York State Department of Taxation

New York City Department of Finance

New York State Courts

Laws of New York

Federal links:

Federal Bar Association

Internal Revenue Service 

U.S. Court of Appeals for the Second Circuit