I recently conducted a statistical analysis of 2,578 brand pages on Wikipedia based on standardized tags and rankings the site's editorial community places on the articles. The report
on the data got some pickup in media publications like PRWeek
One interesting but also unsurprising outcome was that Wikipedia's editors consider most company pages to be of low-quality, but also don't feel those articles are important. This sets the scene for the dynamic between marketers and the Wikipedia community. Marketing professionals are generally discouraged from writing their own articles because they are unlikely to be neutral, but part of the reason it is not prohibited is because we are the most likely ones to take an interest in the page. It is a positive thing for marketers to do when it is done well.