The online database contains all of the cemeteries in Middlesex County completed to this date. The database will remain open to the general public through the end of 2010 by virtue of a grant from the Middlesex County Community Foundation/Connecticut Humanities Council Fund.
Perhaps the database has been online for some time. I'm not certain. I only saw it for the first time today after Harvey Hilton told me about it.
You can find the Middlesex County Cemetery Databases, complete with pictures, on the Godfrey Memorial Library website until the end of 2010 at http://www.godfrey.org/cemetery_records/freecem.htm