Boston-area events this weekend?

So, I am coming out of my way-too-many-things-on-the-to-do not-slump, and I know there are things going on this weekend, but I have NONE of them in my calendar...

The Rich Event took a bunch of time, plus GSS took a bunch of time, and the farm is started, and it is now JUNE!

Clue me in, please?