I love all sports. I particularly love the "alternative" leagues of the 1970's and early '80's. These are some of the sites dedicated to that category of leagues.
http://www.soundercentral.com/MuseumLobby.htm Nice NASL Sounders and MISL Stars photos.
http://www.geocities.com/feverfan78/ Philadelphia Fever data
http://wichitawingshistory.com/ Wichita Wings site
http://www.oursportscentral.com/misl/ General MISL data
http://mislvideo.com Nice list of games to trade
http://www.tampabayrowdies.com Lots of great Rowdies photos.
http://thememphisrogues.blogspot.com/ Blog dedicated to the Memphis Rogues
http://mytampabayrowdies.blogspot.com/ Very nice Rowdies blog, great photos
http://washingtondiplomats.blogspot.com/ Blog dedicated to the Diplomats
http://www.timbersfanpage.com/ Lots of Timbers photos. I "borrowed" a few from this site.
http://www.ftlauderdalestrikers.com/ Nice site dedicated to the Strikers.
http://www.soundercentral.com/MuseumLobby.htm Nice NASL Sounders and MISL Stars photos.
http://davebrett.com/-Dave has an amazing collection of NASL DVDs. He will trade or sell you copies. All his stuff is first rate.
http://www.oldfootballshirts.com/en/index.php This site is primarily European jerseys. They have some NASL jerseys and are adding content all the time. I visit this site every couple of weeks to see what they've added.
http://www.soccershirts.org/ Very nice collection of international jerseys. Has some NASL and MISL jerseys
www.ajaxmuseum.nl This site is dedicated to Ajax. It is a very nice site. Not an NASL site, but anything related to Johan Cruyff deserves a mention.
www.thenationalfootballshirtcollection.com has a number of NASL jerseys along with a very nice collection of international jerseys.http://remembertheaba.com/ This is a great website. I've visited this site every couple of months for years. I never get tired of going to it.
http://abamemorabilia.com/ -A lot of pictures
http://www.charlottehornetswfl.com/ Lots of Charlotte Hornets pictures
http://www.wfl1974.com/index.html Everything you need to know about the Birmingham Americans and Vulcans.
http://www.worldfootballleague.org/ World Football League statistics.