Appertising news came from the chocolate and beer sectors. Hershey, the maker of Hershey Chocolate Kisses and Reese's Peanut Butter Cups, said that the charitable trust that controls the company was exploring a sale. Analysts said the 108-year-old Pennsylvania company could attract a brace of bidders, including Nestle, Kraft, Cadbury-Schweppes and PepsiCo. Hershey shares flew $15.80 or 25% to $78.30.