Facebook is The Most Popular Link Sharing Platform

Facebook is now the most popular link sharing platform as measured by referring traffic. Facebook's referring traffic level is more then double the next contender.

"According to AddToAny, Facebook now dominates sharing, with 24 percent of shares from the widget consisting of users posting items to the social network. That handily beats out email (11.1 percent) and Twitter (Twitter) (10.8 percent), making the world’s most popular social network also the most popular service for sharing content. This is undoubtedly welcome news at Facebook (Facebook), as the site continues to emphasize sharing and readies its own real-time search engine.
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Here’s the full breakdown:"