Brands looking for the most effective ways to market via LinkedIn can now follow the example of a company that knows a little something about LinkedIn: LinkedIn.
The professional network teamed up with Column Five on an infographic containing information from new e-book The Secret Sauce: How LinkedIn Uses LinkedIn for Marketing, including:

LinkedIn A/B tested a sponsored content post–one that included a statistic, and one that did not. The post with the statistic saw a 37 percent higher click-through rate and received 162 percent more impressions. Using a dynamic macro to pull a member’s name in the greeting, LinkedIn sent personal InMail messages to raise awareness about a blog and received 1,240 blog subscriptions (6 percent of total conversions).
When LinkedIn addressed its audience directly vs. indirectly, it saw a 185 percent higher engagement rate.

...