Well, this is fun! Today is PARKing day in Cambridge, Mass. That means a day of reclaiming open urban space … at least until the meter runs out! More than 75 local groups are taking up curbside space and reclaiming 150 parking spaces all over the city today. One of them is the Harvard dCoop, which is presenting a Cambridge Writers’ Salon and Celebration of Local Authors from 10 a.m. to 4 p.m., taking up space on Mass Ave right by the Hi-Rise Bakery (1663 Mass. Ave). I’ll be there from 2 till 2:45, possibly later. Although the Coop is a bookstore, we won’t be selling books. We’ll be talking about writing and books, and maybe about the value of open spaces. Who knows? But it should be fun. Come on by!