The second annual Medford Porchfest, an afternoon of free performances throughout the city, spotlighting the musical skills and diverse cultures of the Medford community, takes place today from noon to 5 p.m. In last year's inaugural event, more than 150 acts played at over 100 locations. The deadline to sign up as a host or performer is Monday, May 20. Visit the Porchfest website for more information and to sign up. Would you like to help us run Porchfest? Volunteer tasks…