It is no surprise that Los Angels start-ups cluster along the Silicon Beach from MDR to Manhattan Beach. Startups form a boot with the foot along the beach and shaft passing through Culver City, West Los Angeles, Beverly Hills, West Hollywood, Hollywood, Downtown and on to Pasadena. Santa Monica has the great concentration of start ups and constitutes the heel of the boot. They are not in the Valley, Glendale, Burbank, South Los Angeles, Northeast Los Angeles or East Los Angeles.