ress Energy (PGN) in the S&P 500 after the close on Facebook appoints COO Sheryl Sandberg to board of directors (first female director Group led by Jacques Delors & Helmut Schmidt propose debt agency to issue Eurobonds (FT<http://www.ft.com/intl/cms/s/0/e55ae546-bec4-11el-b24b-00144feabdc0.htmlfaxzzlysTaf4sf>)