Politics! Although, admittedly, I've been tempted lately. But I know that's not what people are coming to read, so I stay off the topic. Plus, it's such a heated area... I don't want to invite vitriol.
I probably shouldn't talk about sex either, since my ENTIRE family reads... but sometimes I do anyways ;-)
I don't talk about politics, I read the responses and its for what many may think is odd. However I don't know what the future holds for me, I may decide to run for some sort of office or something and my views on something may change however once it is out there for the world to see you can't take it back and one thing I learned over the last year is if you have ever changed your mind it can be used against you. So I figure if I leave it out of anyplace public it won't haunt me if I change my mind after receiving more information.
I don't talk about a few other things that go on in the house, I don't want a pitty party on my blog so I don't post it.
My family including my in-laws all know where to find my blog. I don't think any of them read it regularly, but I know they have visited my blog in the past. I don't talk about sex ever. I don't discuss my husband either. He would kill me if he thought that I discussed him or our private matters, so I keep some things off of my blog. I just started blogging so so far it has been a non-issue. I also don't talk about politics either. I have also never mentioned my kid's real names either - even though that may be so silly. I just don't want their real names out there so I guard that information and use their nicknames. It makes me feel a little less paranoid.