The town this week is hosting the second of three “Third Thursday” festivals intended to showcase area businesses and amenities available to residents. The event will be held on Littleton Common from 5 to 7 p.m., with vendors offering specialty items, food, and crafts, among other items. The final Third Thursday event is scheduled for Aug. 16. Proceeds from the festivals will go toward Littleton’s 300th anniversary celebration, scheduled for the summer of 2014.