Tech investors are sidling up to the bar again after the "Facebook hangover," only this time they are minding their P's and Q's. "In a sense, the tech IPOs are back," said Francis Gaskins, president of IPODesktop.com. Only seven tech or Internet companies have gone public since Facebook's IPO; by comparison, Gaskins said now there are 20 technology companies in the IPO pipeline. The difference is that the offerings are smaller and priced to lure institutional investors rather than emotion-driven retail investors.