I post pictures, I'm a macro freak, you've probably seen it already.
When I take this new-shot-I'm-so-proud-of, my first craving is for critics.
I, thus, proceed to sharing my picture, while trying to make it available to most of my contacts.
That's where I am actually having a slight problem.

SNS addicted as I am, I have contacts on Facebook, Twitter, Gmail, Deviant Art, Flicker and I also publish over two blogs.
Some of my Facebook contacts don't use Twitter, not mentioning the ones from Deviant Art. I can't make my picture available for public search if I post only on Facebook (in a sense yes, but it's pretty difficult), and I am granted instant oblivion if I use a service such ac Tweetphoto or ImageShack, even if it's the only way to reach my Twitter contacts who are not on my other accounts.

Posting the pic (it would be the same for a blog post) everywhere at once is not a solution, since the my friend's feedback will be fragmented along all the services I use.
But where things become funny, is when even if you post some data over one place only, the comments will originate from any place you've linked to it. Meaning that if I upload an imageor text to Facebook and cross-post (which is often done automatically) to Twitter and Posterous, the comments on this picture will originate from Facebook, Twitter and Posterous.

That's a corollary of what I'd call the multiple entry point problem, and it's irritating.

And there is no way I can aggregate that. Or is there one?

Edit:

After having thought about it for a little while, the ideal solution would be a unique ID and/or entry point for curated data, something ressemblig Discus, but for all uploaded content. If we could link single pieces of curated info to a unique ID, all metadata reffering to it would become easy to access.

A service would be nice, a standard would be awesome.