I blogged about the Wikipedia Issues with SPAM and the discussions about the use of NOFOLLOW for ALL external Links from Wikipedia. It was done, finally. As of now are all outbound links from the english Wikipedia Site using the NOFOLLOW attribute, no exceptions. No matter where you place it, Article Page, Talk Page, User Page, Project Page, [...]
Article: http://us.rd.yahoo.com/dailynews/rss/searc...nal.com/?p=4288