We generally meet at Temple Beth Shalom (TBS, a.k.a. Tremont Street Shul), 8 Tremont Street, Cambridge, MA.
From Central Square: Walk up Prospect Street, cross Broadway and make a right. Turn left onto Tremont St. TBS is on your right.
From Harvard Square: North of Harvard Yard near Sanders Theater, pick up Broadway and follow it past the intersection with Prospect. Turn left onto Tremont St. TBS is on your right.