Chicago SkylineEmanuel Wants More Open Government: Mayor Rahm Emanuel has vowed to bring transparency and technological innovation to city operations. "I understand that sounds crazy coming out of a City Hall office," said John Tolva, the city's new chief technology officer. “Open, participatory government” is one of the top goals articulated by Emanuel's transition team. It's an area in which Chicago needs to catch up: Other major cities are ahead when it comes to government services and information provided online. Chicago Reader Verizon Is the Fastest Network in Chicago: PC Magazine says Verizon's 4G network is the fastest in the city with speeds of up to 32Mbps. That makes it the fastest Verizon network in the country. T-Mobile's was the fastest of the rest, though inconsistent. Also keep an eye on Cricket, which has solid, consistent and reliable connections. What's the best 4G spot in Chicago? The campus of University of Illinois, Chicago. PC Magazine Ravenswood Corridor Emerges as a Tech Incubator: The once-industrial Ravenswood corridor is now an up-and-coming tech center, home to companies ranging in size from startups to established companies like Guaranteed Rate -- "the Google of the mortgage industry" -- and software developer NogginLabs. Running along North Ravenswood from Wellington to Peterson, the neighborhood offers commercial space designed for entrepreneurs and companies whose work cultures require large, open spaces rather than traditional office layouts. Chicago Sun Times CDW Will Replace Its CEO: John Edwardson will step down as CEO of computer reseller CDW Corp. later this year.  He'll be replaced by Chief Operating Officer Thomas Richards. Edwardson, who's run CDW since 2001, has more than doubled the company's sales. The Vernon Hills-based firm was sold to Chicago-based private-equity firm Madison Dearborn Partners for $7.3 billion in 2007. Chicago Business