#3 Homes.mil As Carlisle houses the Army War College, there are a lot of listings on military housing websites. AWC refers renters to this website first, so it's one of my top resources when looking for Carlisle rentals.
#4 AHRN.com Similar to Homes.mil, this is one of the first places rentals are listed for exposure to military families.
Honorable Mentions WalkScore.com (good for walkers, bikers, and neighorhood info) AreaVibes.com (rate your neighborhood by categories you choose) Craigslist.org (popular with owners listing their houses for rent) Zillow.com (similar to Trulia but with fewer listings. Also associated with Hotpads.com)