Twitter only allows you 140 characters at a time, but if you know what you’re doing, that can be more than enough. Your company needs a 
Twitter page and the following is how you can get started with using it for business.
Let’s start with the bio. You get 160 characters plus an image to make the most out of, so use this space wisely. The image should be either your logo or something that is immediately associated with your brand. By no means should you leave the image as that egg. Your bio should succinctly describe what your company does, but be sure you leave enough space for a link to your eCommerce website.
Next, it’s time to start building a network. Whether you should begin tweeting first or following others is kind of a moot point. It’s not like either is a process that must be completed first.
When it comes to your tweets, think about them in terms of SEO. What kinds of keywords do you use for your website? These will generally be the ones they use on Twitter too. You can also find a number of free programs online that work like Google AdWords in that they show you how often certain words show up.
It should go without saying that your tweets should always be appropriate and consistent with the perception you want for your brand. Even if you’re tweeting directly to others, people can see it. In fact, even DMs (Direct Messages—which are private) should be appropriate as people could screenshot it and share the message.
If you can figure out how to build up a huge following in short order, that should be your product. People have been trying to crack that code since Twitter debuted.
Don’t give up though. Start by searching Twitter for your relevant keywords and following those who seem to be part of your market. This will at least get their attention, which may result in a follow back.
You can also tweet them directly to start a conversation. Don’t use this as an opportunity to ask them to follow you though. Instead, see if you can answer a question they have or otherwise help them with something related to your business.
This is a good attitude to have in general too. Not every tweet should be a sales pitch. You know what gets followers? Free and useful information. Provide that, get retweeted and you’ll start seeing more followers, which makes for more sales.
Like anything else to do with eCommerce, Twitter isn’t a shortcut. You’ll need to tweet every day, provide valuable content and work at it. However, once you have even a small following, you can mobilize it for business purposes.
Sources:
http://expandedramblings.com/index.php/march-2013-by-the-numbers-a-few-amazing-twitter-stats/