I've been getting frustrated by visiting a bunch of websites that have ten stories, but where eight of them are identical and it's the two that are unique to each site that keep me coming.
for the last little while. It collects the RSS feeds of all the similar sites and presents them all in an easy to digest page and highlights the updates since your last visit (which is good for people like me who visit them throughout the day because it's better than working).
I first found Original Signal when it just had gadgets but it has just added Buzz and Tech. I'm hoping they add Science and Gaming signals soon.