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Philadelphia residents have a new weapon for fighting municipal corruption: An iPhone app that lets them send photos and video of money-wasting city employees directly to the controller's office. One crusading Philadelphia politician is using iPhones to fight corruption and fraud. City Controller Alan Butkovitz announced the launch of Philly Watchdog , an anti-corruption iPhone application, on April 19

An ad agency has resorted to an innovative hiring technique: a hashtag battle. Say you're a hiring manager at a leading advertising firm, and you're looking to hire a summer intern

Now here's an incredible idea : A super-thin transparent screen coating for smartphones that could continuously top off your battery with solar power. The technology is coming out of a small company called Wysips , which has perfected a transparent coating less than 100 microns deep that captures enough energy from the sun to generate electrical power. It relies on the application of super-thin strips of photovoltaic cells laid down on a display screen, and then a precise layer of cylindrical lenticular lenses deposited on top

IBM announced the first batch of cities this week awarded grants as part of the company's three-year, $50 million Smarter Cities Challenge . The recipients --including New Orleans, Newark, Rio de Janeiro, and Jakarta--are diverse, to say the least. So how did they end up with IBM's attention, and what happens now?