A shareholder group is gaining momentum in its efforts to pressure companies to disclose charitable giving -- with donations linked to the Rev. Jesse Jackson... The National Legal and Policy Center has stepped up efforts to require corporations to disclose more details about their donations... The Rainbow/PUSH Citizen Education Fund, which in 2001 provided payments to Jackson's former mistress. The Church Falls, Va.-based non-profit group hit two shareholders meetings this week -- Boeing on Monday and PepsiCo Inc. on Wednesday. "Many shareholders would certainly object to their money going to a controversial and divisive figure like Jesse Jackson," said Peter...