Your digital life has a life of its own. Whether you’re on Facebook, Flickr, Twitter or linked in to any social network server, it’s likely that your online existence will outlive you. Authors John Romano and Evan Carroll started thinking about what happens to people’s online presence once they die. They found that much of the information – from emails and blog postings to financial records and photographs – is at risk of being lost forever in cyberspace. Their book, “Your Digital Afterlife” (New Riders Press/2010), tells readers how to preserve and protect their online legacies.