18 Jul 2012
25 Mar 2009
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I'm not 100% sure but I'm don't believe this functionality is built in by default... and I'm not too much of an expert on this but I've been needing to do something similar and have been mulling this over...
the way I've come up with to do it is to make an external template ascx control, then add an event handler to the saveButton click event and add code in there to ping the service... however I'm not sure if at this point in the workflow that the url for the content would be retrieveable... you could easily send it just the general link for the blog itself, for example ping yoursite.com/blog.aspx so it knows that the page has been updated...
this is just in the idea phase however, so I haven't tested it... i hope this helps give you an idea on how to get started!