If youre the sort of person whos constantly posting photos containing #brands on social media, you might want to be aware that Tumblr wants to track you. Companies attempting to understand customer sentiment for their #brand is nothing new, but a new deal between Tumblr and Ditto Labs will go deeper by analyzing photos posted to to the blog network instead of just text. As Mashable reports, the scans wont be used to present you with advertising right now. Instead, Ditto and Tumblr will be collecting information for these #brands to help their companies learn how people feel about them. Several big #brands have already utilized Dittos services, including Cadillac, Coke, and Kraft.