Google Reader (feed aggregator) has been made-over into something much more user-friendly.
The old version was confusing.
It now has a more straight-forward look and feel with familiar left-side navigation and organisation, posts one beneath another in the reading area to the right. And, I just get the posts from one subscription showing at a time - whereas they always seemed to be all jumbled together before.
Much better - but not great enough to tempt me away from being a regular Bloglines user.