Art is for all people, so enjoy yourself. The best site I have seen on the web is Carol Gerten's. You can find her site at Carol Gerten's Virtual Fine Art Gallery. If you like her site, let her know!
Additionally, from May 2001 to June 2004 I lived in Arlington, Virginia and worked in Washington, DC. The district has a multitude of Galleries and Museums. My favorite gallery was The Phillips Collection. I had the privilege of viewing an exhibit of my favorite artist, Jacob Lawrence. He is the link to view some of his works.