Feed Standardization Will Commoditize Feed Aggregation, So Let's Create The Semantic Web!

Below is some of my personal theory on the semantic web and feed aggregation. Please excuse the rambling :).
As companies race to effectively aggregate our content an interesting thing is taking place: suddenly an aggregation of all our web-based activities are available via multiple sites on the web. Personally, I have information aggregated at MyBloglog, FriendFeed, Facebook, and many of my activities also show up on Twitter. So with this information everywhere where’s the value add?