The University of Connecticut has links to 15 volumes of early colonial records in Connecticut hosted at Internet Archive. These Colonial Connecticut Records are free to use.
“As of March 2010, this site relies on Internet Archive’s American Libraries editions of these records. To search the full text contents of each volume online, select the appropriate volume link below, then follow the “Read Online” link on the left-hand side of the browser window. Once the book’s pages appear, use the search box at the top right hand side of the window to search within the volume. Note: By clicking on a volume link below, you will be leaving the web pages controlled by the University of Connecticut.”