help intercepting save_post through plugin

I am not entirely sure what you are trying to do. But you are definitely a little off with add_action(). Should be something like this:

function myFunctionThatSendsMyWebsite($post_ID, $post) { 

    // $post_ID and $post will have post's ID and full post object
}
add_action('save_post', 'myFunctionThatSendsMyWebsite', 10, 2);