PROS: A gigantic, constantly-updated news/blog aggregator for tech news, putting articles in context and helpful hierarchies.
CONS: Story focus is largely based on popularity of discussion as opposed to relevancy.
SUMMARY: An indispensable news gathering system that gives you a good snapshot of what people are talking about technology-wise. Unless your career and hobbies are very distant from technology (and if you're reading this they're probably not), you should subscribe to it in RSS feed or read it once or twice day.