In case you aren't aware of it, a vote is taking place at
http://en.wikipedia.org/wiki/Wikipedia:Nofollow regarding the use of
"rel=nofollow" in the XHTML generated for external links on the
English Wikipedia. This attribute causes Google to ignore the link
when it crawls a website. Kate stated in #mediawiki that the
developers would respect the results (either for or against attribute
use) of a project poll, so vote on the matter if you are so inclined.
Remember that the results of this poll will only affect the English
Wikipedia.
--Slowking Man