Tweet Canonical
I wrote a bookmarklet to scratch an itch. It parses the current page in your browser for a RevCanonical link and sends that to Twitter as the base of a tweet. I mostly plan to use it to tweet about Flickr photos but you can use it on any page that has a RevCanonical link.
You can install it by dragging this link to your bookmark toolbar: Tweet Canonical.
I’ve tested it in FF 3.5 and Safari 4.02 so far. It should also traverse any framesets or iframes on the page to look for the RevCanonical link. (I’ve tested this in a limited fashion.)
Uncompressed source code is available on GitHub. Feel free to fork, raise issues, or entirely rip it off.
It’s my first bookmarklet ever, so I used a bunch of advice from a great page by Troels Jakobsen. Big ups to waferbaby for testing and James Dumay for helping me out with the architecture for the error messaging.
As ever, if you wish to complain direct to the source, my contact details are available here.