Cycling Maps: this page has a number of links to bicycle maps of Carrboro, Chapel Hill, and Orange County.
North Carolina Bike Maps and Routes – Bicycle highway maps, regional and local maps, and urban area maps. Working with local cyclists, the Division of Bicycle and Pedestrian Transportation has created a series of touring maps covering different portions of the state. An excellent resource for finding maps!
MapMyRide.com – Find Rides and Cycling Routes in Carrboro, Chapel Hill, or anywhere.