One of my biggest challenges in chasing down church records is figuring out if the church is still in existence. An open church may still hold its records - or at least know where they are - while a closed church's records are probably in an archive somewhere. For me, that often means a lot of Google searches, some estimated guessing (the Congregational Church in town is usually the original church) and some hope - until now.
The Connecticut Society of Genealogists has built webpages for each of Connecticut's 169 cities and towns. These town sites give the town's founding date, probate information, the name of the town's schools, a list of newspapers, and most importantly, a list of the current churches. While this may not help you locate the records if the church has closed, it does at least provide a starting point!