"In an unusual mix of investor relations and grassroots political outreach, several corporate giants have sent letters to shareholders asking them to contact members of Congress to support President Bush's proposed dividend tax cut," PR Week writes. "[S]everal large dividend-paying companies, including GM, Citigroup, Southern Company, ChevronTexaco, and Verizon, have sent such letters to shareholders. 'We think this proposal makes good economic sense, and is good for our stockholders and General Motors,' read a recent letter to GM shareholders from president and CEO Rick Wagoner. 'We've shared our enthusiasm for it with members of Congress, and we urge you to do the same promptly.'"