Usage
If your website or topic is on Wikipedia, you can link it on your wiki page.
{{Wikipedia|Page Name|Caption (optional)}}
Notes
If the page name at Wikipedia has spaces in it, you must replace the spaces with underscores ( _ ). If you don't want a different caption, use for the caption the page name without underscores.
Examples
With Caption
{{Wikipedia|AboutUs.org|All about AboutUs at Wikipedia.}} produces:
http://icannwiki.com/images/3/3e/WikipediaIcon.png
Without Caption
{{Wikipedia|AboutUs.org}} produces:
http://icannwiki.com/images/3/3e/WikipediaIcon.png
Only Icon Links to Wikipedia
{{Wikipedia|AboutUs.org|All about AboutUs at Wikipedia.}} produces: