Dotcom Distribution is renewing and expanding at 300 Nixon Lane in Edison NJ. The distribution company, which currently occupies 238,000 square feet in the facility, is increasing its presence to more than 400,000 square feet in March 2010. ProLogis developed the 800,000-square-foot class warehouse building in 1999 on about 90 acres. Additional tenants include FedEx and Dr. Leonard's Healthcare Corp.