How to get more Twitter followers

Michael Hyatt currently has more than 110,000 followers on Twitter. He says he adds, on average, 73 new followers per day and gets re-tweeted 260 times per day, for a daily reach of 418,908.
Twitter is one of key tools in my platform toolbox. It represents about 21 percent of my blog referral traffic. In terms of the return, I don’t know of a better investment.
Here’s how he does it:
How to Become a Twitter Ninja in Less Than 30 Minutes a Day