Yesterday I found out about a site called
PopDex. Basically they crawl blogs, and sort out what everyone is linking to, giving each link a score from 0 to 100 based on the amount of people linking, then aggregate it into a list, which has it's own RSS feed. The highest scoring links make it to the top of the list. Because of this, you can hit this site and find out what "everyone's talking about". Pretty neat!