We first discussed the impact of social media on the sciences in April, 2011. Then, 100 percent of lab managers admitted to never having used flickr and over 80 percent hadn’t opened a Facebook account. Revisiting the topic in September 2012, we said that getting a grip on social media remained a challenge. “Untamed and unpredictable, it rolls like a cyber tsunami, sweeping and reordering the communication landscape.” This month we return to the topic again and, wow, what a difference 15 months can make.