It is wise to acquaint yourself with any repository in Connecticut which you might visit by writing to the appropriate archive or library in advance.
Most, if not all, Connecticut repositories have published materials that introduce its collections and research policy.
Connecticut archives and historical agencies also have Internet sites that provide the same information. Some even have downloadable databases for some or parts of their collections.
Connecticut Archives
Connecticut Museums
Connecticut Libraries
Connecticut Historical & Genealogical Societies
For almost every state there is a state genealogical society, a state genealogical council, or both. In addition to their own work, state-level groups sometimes help coordinate the efforts of local societies within the state. Their publications, newsletters and quarterlies, supplement those produced by the local societies.