<a href="http://www.newsgator.com/ngs/subscriber/subext.aspx?url=RSS_URL_HERE">
<img src="http://www.newsgator.com/images/ngsub1.gif" alt="Subscribe in NewsGator Online" border="0"></a>
Copy the above HTML to your site, and replace "RSS_URL_HERE" with your feed URL (Atom or RSS). When users click on the image, they will automatically add a subscription to your feed.
Randy: Shall do tonight.
Update: Done!
googd