GANNETT NEWS SERVICE -- Aug 1 -- Online brokers, including TradeKing and Zecco, are using social networking sites to let investors trade stock tips, compare investing techniques, and research companies. Although similar in principle to the popular stock message boards of the late 1990's, the social investing sites are holding users more accountable. This transparency stands to reduce stock manipulation data and quickly lets users see which investors have the best track records. FULL ARTICLE @ COURIER POST ONLINE