http://www.wisc-freemasonry.org/html/links.htm (a thorough list of local lodge and other Masonic group links from the Grand Lodge of Wisconsin) 

www.jpluther.com (a Masonic retailer)

http://www.mastersjewel.com (a Masonic retailer and information resource)

http://masonicregalia.quebecinter.net/ (another excellent Masonic retailer)

http://web.mit.edu/dryfoo/www/masons/ (an information resource)

http://www.ugle.org.uk/index.htm (Where it all started.  The United Grand Lodge of England website)

http://www.cornerstonesociety.com/index3.html (An information resource for Traditional Observance Lodges)

http://www.therelevantmason.com (A masonic blog)

http://www.thesanctumsanctorum.com (A Masonic discussion board-highly recommended)

http://www.msana.com (The home of the Masonic Service Association)

http://www.fishartz.org (A non-profit theatre group.  A Waverly Lodge member is a member)

http://www.wimasonry.com/ A discusson board operated by a Waverly member