In the case of Twitter, you are limited in what you "say" to 140 characters (which would be a nice limit for live conversations with some people!), but you still need to remember that real people are "listening", which should guide your tweets.
Go ahead and use shrtfrms & spcl chars, but remember, you are what you say.
For example, this tweeter includes in his tweet: "... a great post from me..."
A bit on the arrogant side, wouldn't you say?
TAKEAWAY FOR BUSINESSES
- Remember that you are what you tweet.
- If you have people in your business tweeting on the business' behalf, are they supported with guidelines and policies for tweeting?
- Think of social networking interactions as real conversations with real people