As a PR pro, it can be tough to know who to reach out to when it comes to social media. Who has the most influence in the space? Who has the best content? And how do you weed out the self-proclaimed social media gurus from the truly influential? Once you know the people who can make a difference for  your PR campaign, you can begin to follow them, comment on their blogs and engage on Twitter. But first, you must identify the right sources. Luckily, our friends at Vocus have vetted a Top 50 Social Media Influencers list–so you can get a start on building your social PR strategy. See the full list, ranked alphabetically.

About

Gina Joseph is a features writer for Cision Blog, and is also the digital engagement manager for Cision’s marketing department. She’s a book nerd, Detroit sports enthusiast, lover of cats, lifelong Phil Collins fan, and budding snowboarder. Find her on Twitter @gmg912.