Recently Google purchased FeedBurner, a service that processes RSS feeds for computability with most readers, compiles statistics about who is using them, and does some fancy trickery to make podcasts easier to publish.
I have used FeedBurner for a long time now and love the service. Being someone who likes to keep control of my feeds I have the feeds URL on my site (http://blog.agm.me.uk/blog/rss.xml and http://blog.agm.me.uk/blog/atom.xml for example) and then use a temporary redirect to pass the user to the FeedBurner domain (http://feeds.feedburner.com/agm in this case). Now that Google are at the controls the MyBrand service has become free allowing me to use a domain of mine instead of the FeedBurner one (http://feeds.agm.me.uk/agm). You will hopefully not notice any change, but if you see a few old posts reappear then this is why.
One closing thought is that now I see no reason why you should not start using FeedBurner today for the benefit of the people reading your blog, listening to your podcast and you.
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I also using feedburner. I think it is more better to use feedburner than default feed. :D