Twitter is something of a mixed bag as far as social media goes. Its usefulness is being constantly threatened by the quantity of people using it for nothing but spam. At the same time, the folks at twitter are combating that with changes to their terms-of-use and API rules.
We try to use it to seek out and connect with people who will find our products useful, but many businesses neglect the 'social' part of the key to twitter.
If you think that twitter can help you, then use it to engage with people, try and build real relationships with others, and forget about follower count. What is important is building your profile as a responsible citizen of the internet.
If you don't believe us, then read some of these articles by others describing what to do and what not to do with twitter:
Top 10 Not To Do List
Grow your business with Twitter
50 Ideas on using Twitter for Business
