San Diego Diamond Gateway Chamber Of Commerce
Promotes businesses in the I-15 areas of Sabre Springs, Rancho Penasquitos, Carmel Mountain Ranch, Mira Mesa, Miramar, and Scripps Ranch. Newsletter, calendar, events, and membership directory.
Southern Californians for Valley Rainbow
An alliance of business and labor supporting the construction of the proposed Valley Rainbow Interconnect for electrical power transmission. Information about the project and its supporters.