Better Blogger - Auto Maintenence

You want to share something with the world - for example, an audio file that's already out there. Now, you do a search and find a few links and pick one. But, how about putting in the HTML a couple of the other links as alternates. Then, periodically blogger does maintenence and finds that your first choice is defunct and starts using the next one, etc. You get the idea. Let's hope they do.