Personal permanent URLs
This, as with all other things on this wiki, is a work in progress.
What happens when tr.im (or your favorite URL shortening service) has an outage, or worse, is taken offline permanently? Now all those links you've posted to twitter etc. are broken. I'd prefer to run some kind of simple URL shortening service myself, such that I can ensure its uptime / availability / permanence on the same scale as my own site.
This could be a really dirt simple django app. Single-user, encourage other people to download the code and run it themselves.
Version 2 could, at url shortening time, make a snapshot / archive of the linked page. That way, there'd be some kind of "Link didn't work? See what I linked to at the time" option.
Anyway, will link to github when I've actually started writing code.
Elsewhere
Permanize.org might be worth keeping an eye on.
Simon Willison thinks the Internet Archive should archive the redirects of various URL shortening services (8 March 2009).
Copyright © 2008, 2009 Edward O’Connor. CC BY-SA 3.0.