REUTERS – Feb 3 – Groupon shares jumped to their highest level of 2012 Thursday as the daily deal company got a boost from social networking euphoria sparked by Facebook‘s IPO filing. Facebook filed to raise about $5 billion Wednesday in what would be the largest Internet IPO ever. Shares of LinkedIn hit $77.84, the highest level in almost three months. Groupon shares jumped 8.3% to $23.28. The stock hit $24.22 earlier, the highest since December 16. Such gains may be temporary, especially for companies like Groupon that have less of a direct relationship to Facebook.