NETrailhead.com, trailhead to Northern New England

The Great Maine Bike Swap will return to Portland and expand to Orono this year. The swap, which brings together people buying and selling used bicycles and gear, will take place at the University of Southern Maine’s Sullivan gym on the Portland campus on April 27 and at the University of Maine’s new Student Recreation and Fitness Center on May 4. Both events will be held from 10 a.m. to 2 p.m.