As for a good starting site to look for Reformed thinking, go to:

http://www.geocities.com/Athens/Delphi/8449/providence.html

and here:
http://www.calvinistcorner.com/

and here: (a Charismatic Reformed perspective)
http://www.enjoyinggodministries.com/studies/divine-election/

and for the big enchalada of all things reformed:
http://www.monergism.com/

i would also recommend John Piper:

http://www.desiringgod.org/resourcelibrary/Articles/ByDate/1985/1487_What_We_Believ
e_About_the_Five_Points_of_Calvinism/

and books by RC Sproul...
"Chosen by God" "What is Reformed Theology?"