This article outlines eight recent features LinkedIn has added to its company profiles including the ability to upload a video about your company. There is also the ability to stream blog and Twitter posts to your company page.
Downside: Managing these Account
I hate to be the pessimist but it does seem that for small businesses, managing both personal and business social media sites can be overwhelming. Are you posting different information to your company profile than you are to your personal? Should it be the same or different? Which type of profile is the most important for visibility? I will spend some time looking into these questions and share the pros and cons over time.