I use their names on my blog but I limit the amount of pictures I post. As for facebook, I don't have it linked to my blog, and it's set up at the highest level of privacy. I started facebook mainly as a way to get pix and video of my girls out to friends and family. I'm much more selective about what I'll post on my blog (in terms of photos, etc). I thought about not using their names or making names up, but then it just felt kind of forced (for me). I understand why people do it but it would create a kind of barrier in my writing.