A recent article by Bill Slawski says that Wikipedia should undergo changes regarding it's page for Search Engine Optimization. The write up has been posted in his SEO by the SEA blog. The write up emphasize on the fact that Wikipedia should improve the page which is rather simplistic and non-optimally informed.
Here is some information from Bill’s post:
Statements like this one really need to be changed:
Search engine operators became interested in the SEO community soon after the first search engine was launched. In some early search engines, such as Infoseek, ranking #1 was as easy as grabbing the source code of the top ranked page, placing it on your site, and submitting a URL to instantly index and rank that page.