My friends are on too many different social networks, and often I just want to post the same update to all of them.
As there are different limitations on different networks, the update will have to be slightly tailored for each of the networks, but the basic content can often remain the same.
Is there a tool for that? Is there a self-hosted tool/app/program for that?
I imagine I create a post with text and link/image/video. This can go directly onto Diaspora, Facebook, Google+ and LinkedIn. It can also make a blog-post on Wordpress. By making a short summary of the text, it can go on Twitter.