In The Power Formula for LinkedIn Success, Wayne Breitbarth (powerformula.net)  introduces many tips to leverage the full power LinkedIn. 

LinkedIn Profile Development & Optimization Strategies | Smart Company Growth (May 31, 2011)

New LinkedIn Company Pages: A Step-by-Step Guide for Content Marketers | Content Marketing Institute (April 19, 2011)

Book Marketing with Twitter, LinkedIn and Facebook | bookcoaching.com (April 13, 2010)