I read with interest the Mashable article explaining how to share content on MySpace from your own site, so I tried it.

Unfortunately it is very limited.  It does allow HTML to be posted but that HTML is altered before it is displayed making it almost useless.  For example it removes Javascript - so I thought of using an Iframe.  Then, I found it removed the Iframe so I tried a picture and guess what is replace that with 2 dots.  Shame, seems they're concerned about security.  What's worse is they have no mobile option so the sharing screen displayed is a large form which would not work on a phone too well.

In the end the only thing you can do is give it some text and give it a URL.  If the Myspace user clicks the url they then get an "offsite" screen which they have to accept before getting the content.

All a great idea but the implementation is so limited its not worth thinking about until they fix the issues.