Just activated a new plugin for WordPress: wikipedia-nofollow. Ken Yasumoto-Nicolson (aka seron) says he whipped this one up over lunch, but it’s well written (for PHP) and succinct. It adds rel=”nofollow” to all links to wikipedia.org in your posts (and optionally in the comments as well) if they don’t already have that attribute. Rather than modifying the database, it operates when content is rendered — so you’re not making permanent changes.
Why would you want to use this plugin? Because Wikipedia has started adding rel=”nofollow” to all of their outbound links, denying sweet Google-juice to all of their sources. In today’s web, which is driven by search, that’s the equivalent of omitting attribution, IMHO. Plus, it is so not “the wisdom of crowds”.
I’m pretty certain that Wikipedia contains no links to any of my sites, nor do I expect any in the near future. This action is based on principle, and was inspired by Andy Beal’s battle cry (thanks, Randy).