The Connecticut State Library’s subscription to ReferenceUSA is now available to any resident of Connecticut with a State Library card.
ReferenceUSA: provides directory information for US businesses in all zip code areas and has really good coverage of small private, local companies. A mapping feature allows one to identify businesses within a certain radius by SIC and NAICS codes.
ReferenceUSA can be accessed at: http://www.cslib.org/eresourceshome.htm#R
Residents can apply for a State Library card in person or by mail using the procedure described here: http://www.cslib.org/borrow.htm#Librarycard
Questions can be directed to the State Library at: http://www.cslib.org/asklib.htm