Facebook is testing a tool that in the future could give users the power to hide advertisements relating to alcohol while using the social media network. Using the ad-blocker, trial users will be able to block ads relating to either parenting or the alcohol industry (the two trial topics) for six months, a year, or permanently. They will also be able to suggest which topics they would like the ability to block in the future. Might this tool be able to reduce youth exposure to online alcohol advertising? Read more here.