Posting to multiple social networking sites at once?

[Markus]

Hey, is there any kind of script I can emplement on my page that would allow me to, once logged in through Facebook connect and so on, post to all my social networking sites (Facebook, twitter etc) at once?

Not looking for a program, just a script I can emplement on an existing page.

[just "JR"]

I am doing a website just to do that! Currently at http://ethan.jrcw3.com as development server.
Just a script? No chance! You have to master OAuth for authorisations, then the libraries APIs for each and every other social network, after reading and understanding hundreds of useless pages of documentation and joining all the "Developer communities" that exist.
Bit of a nightmare...