I'm planning on writing a few articles for Wikipedia, and show my sites as external links. Anyone had experiences doing this before?
It will only help for purely human visitors who click your links. This is a trick I thought used to work until I had a conversation with a wikipedia moderator who told me they use nofollow tags so search engines wont find you or rank you from links on wikipedia.
I think most SEO experts are pretty much experienced with wikipedia writing. It opens a great avenue for visitors to come to your site but we can only be wary of limitations. We write only for targeted relevant and unexplored keyworded topics that will be easily approved. But since it;s a public archive anyone can have the ability to add, deduct, rewrite, or generally make a better article than the one you publish. Of course the better article gets more visitors.