This is an important topic and something which should be tended to on an ongoing basis.
Ben Welsh of the LA Times data desk has built Savemy.News which leverages Twitter in combination with archive.is, webcitation.org, and archive.org to allow journalists to quickly create multiple archives of their work by simply inputting the URLs of their related pages. It’s also got a useful download functionality too.
Richard MacManus, founder of RWW, wrote a worthwhile article on how and why he archived a lot of his past work.
Those with heavier digital journalism backgrounds and portfolios may find some useful information and research coming out of Reynolds Journalism Institute’s Dodging the Memory Hole series of conferences. I can direct those interested to a variety of archivists, librarians, researchers, and technologists should they need heavier lifting that simpler solutions than archive.org, et al.
Additional ideas for archiving and saving online work can be found on the IndieWeb wiki page archival copy. There are some additional useful ideas and articles on the IndieWeb for Journalism page as well. I’d welcome anyone with additional ideas or input to feel free to add to any of these pages for others’ benefit as well. If you’re unfamiliar with wiki notation or editing, feel free to reply to this post; I’m happy to make additions on your behalf or help you log in and navigate the system directly.
If you don’t have a website where you keep your personal archive and/or portfolio online already, now might be a good time to put one together. The IndieWeb page mentioned above has some useful ideas, real world examples, and even links to tutorials.
As an added bonus for those who clicked through, if you’re temporarily unemployed and don’t have your own website/portfolio already, I’m happy to help build an IndieWeb-friendly website (gratis) to make it easier to store and display your past and future articles.