The busy folks at Twitter are hungry for some money to pay for all that bird seed (and servers, and salaries, and investment, and...) that they decided to talk directly to business prospects with their own Twitter 101 For Business
This is a helpful overview for you and your decision-makers to learn the basics and see some case studies about how Twitter can be used for any size company...
Twitter lets you write and read messages of up to 140 characters, or the very length of this sentence.