For some years, there have been regular ‘complaints’ about Wikipedia’s top position in the search engine results pages, with Wikipedia links frequently occurring in the top three (or at least first page) organic search positions on all of the major engines such as Google and Bing. However, is it unfair bias or is it really very simple SEO?
If we presume that there is no search engine algorithm bias towards Wikipedia, then it must be that Wikipedia employs a winning SEO formula. For any company looking to promote their website, there are few better sites to study to understand how and why these top SERPS are consistently achieved. The following are just a few of the ways in which Wikipedia beats most websites on most search terms, and a few questions to ask yourself about your own site and SEO strategy.
1. Unique, in-depth and regularly updated content
Check your own website. What percentage of pages have been updated recently? Is your content high quality and unique? What level of detail do your pages go into about your products and services? There will always be a level of debate about how these criteria apply to Wikipedia, but for your own site these are valid questions to be asking yourself about your content.
2. Keyword rich (including many related phrases) and dedicated topic pages
Each page on Wikipedia is dedicated to a single topic, and it may well also include references, sources and keywords relating to that subject. Obviously, your website does not need to be encyclopaedic in its approach, but it is important to ensure that a page keeps as close to a ‘theme’ as possible, without crossing the line and creating so many pages to cover all topics individually that navigation for your users becomes difficult.
There is also a maintenance issue if you add too many pages to your site in order to capture more search engine interest, unless you have a global community of crowd sourced editors to help you regularly monitor and check for broken links, out of date info etc.
3. A frequently referenced/linked to domain showing site authority.
Are you an expert in your field? Does your company enjoy the respect of others for the quality of your knowledge and expertise? Are you providing sufficiently good and unique content for others to wish to share? Are you effectively promoting your site so that others in your sector or those in your target audience are aware of the site and quality content?
4. Logical and strong internal linking structure
Information architecture is extremely important when building websites, and making sure the internal navigation flows easily to further information, related products and services, news items, photos and so on is critical. As we can see from the screenshot of Wikipedia, there are multiple internal and external links on each page, each with keyword rich anchor text.
5. Multilingual
Creating language specific content for a global audience or to reach customers in target countries is always a good idea, but make sure that your content is checked and double checked by several native speakers of the languages you choose.
Whether or not some of the Wikipedia pages deserve to be top of the SERPs is a moot point. The fact that so many are, on so many different engines, implies that the strategy employed and some of which is outlined above, means that it works and can do for your site too.

After the announcement last year that the 3 major search engines would adopt the canonical tag, it seems that Bing and Yahoo may be about to support it too, though not to the cross-domain level that Google plan to.
This tag helps solve the duplicate content issue, particularly prevalent when multiple URLs point to identical content eg when tracker URLs are used, or dynamic pages are created from search criteria.
If you are going to use it, make sure you don’t try to come up with methods to con the search engines and follow the guideliens carefully on its usage. It could help your SEO immeasurably, especially for top landing pages rather than similar product pages that just make your analytics task that much harder.