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MySpace.com has teamed with an online identity- and background-verification company to root out sex offenders from its popular social network. MySpace plans to identify and delete profiles of registered sex offenders using a database Sentinel Tech Holding will build with info on 550,000 of the criminals. ... The latest numbers from comScore Networksshow there are 17% more shoppers online this holiday season spending an average 7% more overall. Between Nov. 1 and Dec. 5, online shoppers spent $13.7 billion, a 25% increase from the same period a year ago. ... Toshiba has broken the 100-Gbyte barrier for 1.8-inch hard drives. Its new MK1011GAH drive employs perpendicular magnetic recording technology and is intended for use with lightweight PCs and devices with 8-Mbyte caches. ... Dell last week launched Energy Smart versions of its PowerEdge servers, designed to deliver 24% to 26% greater performance per watt. ... In a bid to maintain its dominance in enterprise routers, Cisco Systems added optional upgrades to its Integrated Services Router for branch offices, including a WAN optimization engine, a network analysis module, a faster services engine, and flexible WAN interfaces that work with cable and DSL.