The website of the Group of seismic isolation of the National Italian Association of Earthquake Mechanics, contains information of seismic isolation systems and applications in Italy.
DIS INC. This company is specializing in the installation of seismic isolators in structures. In the site you can learn a lot about the technique of isolation used by the company.
Base Isolation. If you are interested in material for seismic isolation, you should check this site!ise buildings, culverts, petrochemical plants, tunnels, bridges, piles and much more!