LinkedIn on Thursday announced it has 150 million members in its network, a 20 million increase over November. The figure was disclosed in a press release the company issued Thursday announcing its fourth quarter and full-year 2011 results. The company posted revenues of $167.7 million, beating the analysts’ consensus of $160 million for Q4. Earnings were $0.06 cents per share, which was on target. LinkedIn’s stock was up more than 5% in after-hours trading. The Q4 revenue figure was a 105% jump over the same period in 2010. Revenues for full-year 2011 was $522.2 million, a 115%…

