http://www.seagrantnews.org/news/ri1.html
An interesting news article on archeological discoveries of early Rhode Island
http://www.sec.state.ri.us/rihist/earlyh.htm
A history of Rhode Island
Though there is no archeology here, there is plenty of  good background material
http://www.rihphc.state.ri.us
http://www.uiowa.edu/~osa/nasa/in/rhodeisland.html
Contact information for The State Archeologist