Who are Barack Obama's biggest campaign donors?

http://opensecrets.org/pres08/contrib.asp?id=N00009638&cycle=2008

Goldman Sachs $474,428 Ubs Ag $298,180 JP Morgan Chase & Co $282,387 Lehman Brothers $274,147 National Amusements Inc $265,750 Sidley Austin LLP $251,657 Citigroup Inc $247,436 University of California $239,944 Skadden, Arps et al $228,520 Exelon Corp $226,661 Harvard University $225,891 Jones Day $213,825 Google Inc $192,808 Time Warner $190,091 Morgan Stanley $190,026 Citadel Investment Group $173,950 Kirkland & Ellis $163,126 Latham & Watkins $160,842 WilmerHale LLP $155,788 Jenner & Block $151,447