I, for one, find it crazy that I can Like and maybe +1 a blog entry, but I can't Pinboard it or ReadItLater or Orkut it without the site implementing those buttons, despite them all doing roughly the same thing with roughly the same data.
I, for one, find it crazy that I can Like and maybe +1 a blog entry, but I can't Pinboard it or ReadItLater or Orkut it without the site implementing those buttons, despite them all doing roughly the same thing with roughly the same data.
Facebook's open graph tags are everywhere (you kindof need them to make "like" work properly), and what you're describing could be implemented using a javascript bookmarklet that read the tags.
But yeah. Pie in the sky. This would require Google and Facebook (aka, The Internet) to give up absolute control over all that information, which they'd probably fight unless it can demonstrate some other kind of gain.
Perhaps this already exists in some form. Perhaps a Pocket for your friends where you put things on a secondary reading list of theirs so as not to get confused with their own list.