writes: Illegal parking has always been a major problem in Rome. More than half of Rome's 2.7 million residents use private vehicles, and the ancient city has a staggering ratio of 70 cars per 100 residents. So many residents park, uh, creatively. But now authorities think they've found a way to fight bad parking using social media. Basically, they've asked residents to post photos of bad parking jobs to Twitter. In December, the Italian cops began encouraging smart phone users to snap pics of illegally parked cars and tweet those photos to the department's Twitter account. The new system, which was created by Raffaele Clemente, Rome's chief of traffic police, seems to be working. In the first 30 days, police received more than 1,000 complaints tweeted to their account., (one example is here). Officials were able to respond to around 740 and hand out citations.