Places to buy cool stuff:

 http://www.a-two-z.com/

Science Fun:

 http://www.madsciencekids.com/

http://www.exploratorium.edu/

http://www.wikipedia.org

http://science.howstuffworks.com/

Mad Science programs in other areas:

 http://www.madscience.org/locations/greaterboston/

 http://www.madscience.org/locations/connecticut/

http://www.madscience.org/locations/southernmass/

http://www.madscience.org/locations/centralma/

http://www.madscience.org/locations/seconn/