There's also this site: The Boston Hassle for shows, art, films, etc.:
About
The Boston Hassle is a music blog and Boston events guide. There are many, many other music blogs out there, and many other Boston events blogs. We are different because we are interested in serving as a guide to, and never ending quest for underground sounds, films and things. Psych, punk, weird, pop, electronic, loud, experimental, and awesome music with one eye looking back and the other forward is what you will find here. Boston happenings, suggestions, and ideas we will spurt. We’re also big proponents of all ages music events. High and low brow smashed to pieces and forever mixed together. Boston Hassle is written by many great musicians and writers from Boston, and aided crucially by the Boston Compass and Bodies of Water Shows.
BOSTON HASSLE the organization is made up of three parts: the Boston Hassle web zine, the Boston Compass newspaper, and Boston Hassle Shows which organizes and programs live music events and festivals, and actively tries to find new spaces to host engaging all ages music and art performances.
http://www.bostonhassle.com/