Sharon Baggon was kind enough to post some info on her site about blog stuff possibly ending up in Pinterest. If you have concerns about that, you can check out Sharon's site at http://www.pintangle.com/
or if you use Blogger like I do, you can do directly here: http://makingamark.blogspot.com.au/2012/02/pinterest-how-to-prevent-your-blogger.html
If you follow the Blogger instructions step by step, it was pretty easy to do. First thing first, SAVE YOUR OLD TEMPLATE! There is a button there that you can click on that says "SAVE TEMPLATE". Good luck!