Feed reading types might be interested in http://friendfeed.com/willgorman for (mostly) everything all in one place. It’s pretty utilitarian visually, but that’s fine as it seems to be primarily intended for consumption in RSS clients.
Feed producing types might also like to use this to save me the trouble of having to keep track of separate subscriptions to your various services because I’m quite lazy. Yes, I could use the “imaginary friends” feature to create my own aggregated feeds of your stuff, but please refer to the previous sentence. I’m quite lazy. Help me out here.