Alphabetical List of Intellectual Property Offices worldwide: http://www.wipo.int/directory/en/urls.jsp
WIPO Global Brands : Perform a trademark search by text or image in brand data from multiple national and international sources, including trademarks, appellations of origin and official emblems.
WIPO Global Designs : A world-wide collection of industrial designs data; including WIPO Hague registrations and information from participating national offices.
Madrid Monitor : Follow the status of your international application or trademark registration, access detailed information on all trademarks registered through the Madrid System, and keep an eye on competitors' trademarks.