More data: Equinix, a Redwood City, Calif.-based data center company, purchased four parcels spanning 34.5 acres near its Ashburn, Va., data center campus in Loudoun County. The company already operates 10 data centers in the area serving more than 850 companies. Unplugging: The consumer electronics retailer Hhgregg is closing nearly a dozen stores in the Washington area as part of its decision to reduce the size of the chain nationally. The closures include Virginia stores in Springfield, Sterling, Fairfax, Baileys Crossroads, Woodbridge and Manassas, and Maryland stores in Largo, Waldorf, Rockville, Frederick and Annapolis. Teaming up: GTL, a Reston, Va.based provider of correctional technology and payment services for government, has acquired Innertainment Delivery Systems, a provider of inmate education systems in the United States. Financial terms were not disclosed.