My parents follow my comic weekly and I think my siblings have the link at least. My boyfriend's parents and some of my extended family read it as well. Some of my friends have subscribed, but I'm not sure if they actually read.
On the one hand, it's nice to get the support, but on the other hand I think I'm going to have to make a post one day saying "Soooo everyone that I know n real life might want to take a break from reading for the next couple weeks. Or if you choose to read, let's agree we do not speak of what happened in the comic. Ever."
Sometimes it's nice not knowing who your readers are outside of the internet!