I've just started playing with upcoming.org. I'm "johnsu01" there if you want to connect. Boston is the 3rd or 4th most active place for events listed. Go us.
So, it looks like later today Haruki Murakami is reading at MIT. Wish I would have known about this earlier, but I may still try to swing it. I'm sure there will be more than a few people there.
+1 for Upcoming.org, now a Yahoo! Company.