Professional networking website LinkedIn on Friday announced its fourth quarter financial results, boosting stock prices by 18 percent to $89.96 in trading with news that revenue increased by a whopping 105 percent.
 
The jump in LinkedIn’s stock price was the highest since the company began selling shares for $83 a pop on the New York Stock Exchange last May under the ticker symbol “LNKD”. LinkedIn fourth quarter revenues surged to $167.7 million, up from $81.7 million in 2010, in …