Here are social platforms to consider: Twitter StumbleUpon Digg Slideshare YouTube Facebook LinkedIn Although Facebook and LinkedIn may be core to your long-term inbound marketing program, you cannot emulate organic social media sharing with paid programs on these sites nearly as well. In contrast, Twitter, StumbleUpon and Digg indicate a listing is sponsored, but otherwise include it in the interface like other content. Including your blog feed or twitter stream will give you an immediate content-focused traffic boost. Traditional B2B marketers face a challenge.