1) Ensure all your social network (Linked In, Twitter, blog) profile pictures are the same.
2) Participate! Nothing happens without action on your part
3) Participate regularly and with relevance.
5) Set up some automation ( http://www.TweetLater.com )
6) Add your Twitter updates to your blog/Facebook
7) Add your blog feed to your Facebook page
8) Set up a Facebook Business page for your business
9) Add your Linked In/Twitter url to the signature of your emails.
10) Organize your Twitter “universe” into lists using http://www.TweetDeck.com or similar.