It's another good day for recent consumer Internet IPOs, as short-covering and positive commentary help them add to Friday's gains. FB +6.1% GRPN +10.7%. ZNGA +5.6%. P +5%. YELP +2.7%. LNKD +4.7%. While Groupon gets a lift from a Morgan Stanley upgrade, Zynga is benefiting from bullish remarks from Wedbish's Michael Pachter. Pachter joins others in predicting new games will boost user growth, and also expects the monetization of older games to improve in 2H.