A year after its implementation in May 2011, the European Commission's Privacy and Electronic Communications Directive will finally start to be enforced as of tonight, meaning visitors to websites are required to be informed of, and given choice over, the site's intentions to store their data in cookies. Though there has been fierce opposition to the directive, some companies, such as the BBC, Channel 4 and the Guardian, have now begun implementing measures that range from multiple user choices in the level of information shared with the site,...