Send Direct Messages to Multiple Twitter Friends At Once
Twitter lets you send replies to multiple friends at a time. All you have to do is include “@” followed by the username of the person(s) whom you want to send the message. But this is not the case with Twitter Direct messages.
You can not send Direct messages to multiple friends on Twitter. Neither from the web version nor from any desktop application. This is quite unlikely but here is a neat workaround.
Enter TweetGuru – a simple web based Twitter app which can be used to send direct messages to multiple people at once. Just sign in with your Twitter account, authorize the App, and enter your message in the text box as shown below:

Tweetguru can be used to send direct messages to 12 people at a time. This is useful in situations when you want to send the same message, may be a birthday invitation or event schedules to a group of Tweeples.
Tip: Tools to bulk unfollow inactive Twitter followers


