Perhaps you should try this nice website: http://www.artrenewal.org/index.html .
[By the way, our personal favorites, art-wise, include Caravaggio, Titian, J. L. David, Fragonard, Veronese, de Hooch, Poussin - and Rembrandt depending on which painting it is].
Indeed, junk art has taken over everywhere: at the dentist's office, in restaurants, in shopping malls, sometimes even at your friends' houses. In fact, you might say that there is a "junk art revolution" going on.
Remember: art is culture. Crappy art = crappy culture.