Figuring out what’s trending across social media is a little tricky. Many people don’t realize that when Twitter shows you what’s trending it’s showing you what’s trending in your social sphere. That’s why when you go to a conference the conference organizers emphatically announce that their conference is trending and if you look across Twitter globally your topic is nowhere to be found.

A website that I discovered through LifeHacker actually shows you the top 100 items that are trending on Facebook or Twitter. Regardless of topic, geography or users, RadURLs is a raw list of the top 100 sites. RadURLs shows how many Facebook shares, how many Twitter shares and then a cumulative trending score for both sites in a ranked list 1-100.

RadURLs allows you to sort their list by what’s trending on Facebook or what’s Trending on Twitter. Or you can use the default viewing which is based on their own algorithm.

RadURLs updates their rankings every 15 minutes.

Not surprisingly, when I wrote this story the top URL’s were from BuzzFeed. Fark, the BBC, TechCrunch and the Hollywood Reeporter also top trending sites.

The benefit from RadURL is that this is a purely data driven site and gives you a better snap shot than other ways to check what’s trending.

Want to find out what’s trending now, head over to RadURLs.