::Again, I've just copied this from my talk page. 

 ::There's a very big difference on Wikipedia between a reference and an external link.  A reference - which may be to another website - is justification for a specific section of the text of an article.  Our policies mean that we have to reference most of our material.  An external link is a link to another website that is not being used to justify any part of the article. 

 ::If you were to add relevant material to the article, referenced to your site, then there would be no problem.  You'd want to read some of our policies first: WP:FIVE could be useful, along with WP:NPOV, WP:V and WP:NOR and WP:CITE are the basics.  You may also want to bear in mind that if the material isn't considered relevant to the article by others it may be removed on those grounds.  If you're not sure, go to the discussion page, as I say, and people will discuss your edits with you.  

 ::One more thing - when using talk pages (but not when writing articles), you can sign your posts by writing "~~~~" '''' ''''