Twitter is gaining popularity day by day.Much of the companies and sites are trying to market their newer technologies through twitter.They will update upcoming events to all customers who have subscribed to their lists,through tweets.
This plugin adds a button to your wordpress posts which helps the user to tweet and retweet wordpress blog posts which will attract more targeted potential users to your blog and gain popularity.
Plugin Url: http://www.techtipsmaster.com/tweet-retweet-wordpress-posts-plugin.html
wordpress url download: http://wordpress.org/extend/plugins/tweet-retweet-posts/