Last month I railed on the new Wayback Machine plugin for Chrome. Well they've been busy, and the current version solves many of my nitpicks on the initial version. Archive.org has a post detailing 6 ways you can save pages to the Wayback Machine, and that Chrome plugin makes the list because it now allows you to SAVE existing pages and not just retrieve missing ones. The other 5 options in the post are also well worth knowing about - please do use one or more, and let's make sure important stuff never disappears!