Interesting sites for your enjoyment 

• From the Mayors Doorstep, an online art magazine by Piri Halasz
  http://www.mindspring.com/~piri/index.htm
• Abstract Art Online
  http://www.abartonline.com/
• Abstract-Art.com  
  http://abstract-art.com/index.shtml
• Artweb-Market
  http://www.artweb-market.com 
  After arriving on this web site, click artists, then select the letter L
• Nurtureart is a non-profit organization dedicated to the nurturing of artists.
  www.nurtureart.org