"... now let me just post it on the Internet where it will be safe from all those prying eyes."
Let's review this story:
Step 1: Take family picture.
Step 2: Put family picture on Christmas cards, a "few" social networking sites, and your mommy blog.
Step 3: Be surprised when it appears somewhere else.
Step 4: Profit?
If you don't want something getting out into public knowledge and use, don't post it on the Internet. In case you haven't guessed, my name isn't Lester.
At least a big, something gross wasn't Photoshopped in it... yet.