One year later, what has #BringBackOurGirls accomplished? It didn't bring the girls home. Second-hand reports suggest that 57 of the girls escaped their captors, but the rest are still out there, likely sold off as child brides (or sex slaves). Recently, a UN official said there's evidence they may be dead. It's a sad illustration of the limitations of "clicktivism" -- the use of online media to advance causes. There must be a plan to engage supporters once they've clicked, and keep them engaged, even after the hashtag stops trending.