It's not something I could do instead - it's something I would have to do in addition. And there's some problems with that - at the time I'm copying/mirroring,

It's not something I could do instead - it's something I would have to do in addition. And there's some problems with that - at the time I'm copying/mirroring, the site is out there on the net. Uploading (as in direct uploading) to archive.org of sites that exists would look a bit strange, I think. But if you mean to get archive.org to mirror instead - yes, I do that too, but the thing is, you can't get archive.org to recursively mirror anything. You can point save.archive.org (IIRC - they change the URL sometimes) to a not-yet archived site (or one which needs an update), and archive.org will copy that page. You'll have to click-and-walk through every page if you want archive.org to get a full mirror. And I have done that too, with a few sites. But that's a lot of time-consuming work. Just quickly mirroring a site that pops up during a technical discussion takes all of 30 seconds to set up.