MTV’s 2015 year-end voting has begun on your favorite social stars. MTV extended the original Top 10 to the Top 25 standouts over media platforms Twitter, Instagram, Vine, YouTube, Facebook, and Snapchat. The 2015 nominees list include our favs: Miranda Sings, Grace Helbig, Tyler Oakley, and the talented pouch Doug The…

Two years ago, Twitter-owned Vine was growing like kudzu. It was widely embraced by both consumers and marketers who sought to push the envelope with creative six-second clips. But the explosion of new video formats on Facebook, Snapchat and YouTube, which all now boast sizable scale, has caused top brands to quietly s…