Has your research moved into a new town? ConnecticutHistory.org offers you a way to play catch up. Their town pages offer a short history of the town, a list of sources to learn more about the town's history, places to visit in town, and links to documents concerning the town.
I took a quick look at Middletown's page. While it was missing a few places (Wesleyan University, anyone?), it provided a good introduction to town.