What are the "ethics" of posting photos of kids online?

[Ett]

I've been photographing a lot of kids parties. I don't do this professionally, I do it purely because I love taking photos. And every time I'm working on the photos during post, I often want to post a couple of them online to facebook/500. But these are little kids, though.

So my logic tells me that I should refrain from posting these photos unless I've been given permission by the parents. Is my logic being paranoid? Please tell me it is...

[BigFuzzy]

All I can say is that my personal ethics make it so I never post online unless given specific permission by the parents (preferably in the form of a model release or a contract for the job stating you can use them online for advertising purposes).
Otherwise, you could have all sorts of issues with parents being upset.

[Ambrosia76]

Are these parties you have been invited to or asked to take pictures of or are you just going around crashing kids parties? If you are invites or asked to take them just ask that person if it is ok to post them. If you are crashing kids parties to take pictures well the creep factor of that for outweighs the fact that you are posting pics online.