Make RSS feed of a page that has no feed

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http://superuser.com – How would I go about if I want to create an RSS feed of a page that basically is or has no RSS feed? I really enjoy reading a random article on the Vim Wiki and How Stuff Works. Unfortunately there is no RSS for these special pages. I tried using IFTTT to send me a random article once daily, which worked great, but I would prefer to have this stuff in my feed reader rather than my mailbox. Thanks. (HowTos)