Running list of people and organizations that Rod Blagojevich thought he could leverage, bribe, cajole, or threaten:
President Elect Barack Obama
Warren Buffett
Bill Gates
Service Employees International Union
The Chicago Cubs
The Chicago Tribune
The American Red Cross
EDIT: and Children’s Memorial Hospital
Possibly also Lisa Madigan, Jesse Jackson Jr., and J.B. Pritzker, although those are more speculative.