Gingrich gains steam this week on Inside Facebook’s Election Tracker

Rick Santorum is also on an upswing ahead of the South Carolina primary on Saturday. Mitt Romney, who has fallen in the polls, had erratic growth on Facebook this week. Ron Paul has once again passed him in new Likes per day.

Perry and Jon Huntsman both dropped out of the race this week and have since lost fans on their pages.

Paul was the most mentioned GOP presidential candidate among Facebook users this week, according to information from Facebook and Politico.