Have you used Twitter to connect with your customers? You can be seen and share valuable informationg to help those who are following you.
Even though you are limited in the number of characters, you can still convey details about your business. There have been updates that pictures and links are not counted in the 140 characters.
Here are some resources that might help you use Twitter:
7 reasons why you should use Twitter:
Clean up Twitter feed:
Color codes for Twitter: