A closer look at Twitter, Facebook and LinkedIn and how to use them for your company

1. A Look Inside: Key Social Media Sites Twitter Facebook LinkedIn

2. Twitter

5. Who uses: Twitter (Demographics) Source: Quantcast

6. Who uses: Twitter (Demographics) Source: Quantcast

10. At a glance: Twitter.com

11. At a glance: Twitter Homepage

12. At a glance: Twitter Profiles

14. Facebook

19. At a glance: Facebook.com

20. At a glance: Facebook Homepage

21. At a glance: Facebook Pages

23. LinkedIn

24. What is: LinkedIn LinkedIn is an interconnected network of experienced professionals from around the world, representing 170 industries and 200 countries. You can find, be introduced to, and collaborate with qualified professionals that you need to work with to accomplish your goals - Linkedin.com

26. Why use: LinkedIn From the LinkedIn: Your professional network of trusted contacts gives you an advantage in your career, and is one of your most valuable assets. LinkedIn exists to help you make better use of your professional network and help the people you trust in return. Our mission is to connect the world’s professionals to make them more productive and successful. We believe that in a global connected economy, your success as a professional and your competitiveness as a company depends upon faster access to insight and resources you can trust.

29. At a glance: Linkedin.com

30. At a glance: LinkedIn Homepage

31. At a glance: LinkedIn Company Page