I am still on my quest to finding an amazing online photography portfolio. I found 2 more that I like but still am hoping to find something less commercial and more social documentary.
This site design is really simple but I still like it. Her name is Irina Rozovsky
http://www.irinar.com/main.html

His work is much more commercial, and his site is very proffesional. I particularly like his philanthropy section so check that out.
http://www.davidsacks.com/