When College of Engineering sophomore Brian Zhou took over the @bostonu Instagram account Feb. 9., he shared his experiences and insight as a Boston University student with the page’s 118,000 followers. But that same day, he also received a racist comment from a troll account.

Given that this year’s Orientation is completely online, incoming students may feel socially behind and removed from campus life. Here are some of Boston University’s online communities you can join to get a head start on your next four years.

All BU students still on campus, with some exceptions, are required to leave campus and empty their dorms by noon March 22 as a result of the COVID-19 pandemic. Those with extenuating circumstances can make an appeal to stay in their residence.