Tweetability lets you indicate, with a shortcode, tweetable text in your posts that your readers can tweet with a single click. As seen on nytimes.com
Integrate Twitter with your WordPress blog. Automatically tweet new posts, display your latest tweet in your sidebar, etc. Uses OAuth for user authent
Adds TinyMCE button for Tweeting selected text in a post.
Make your posts more shareable. Add a Tweet and Buffer button to key sentences right inside each blog post with a simple [tweetable] tag.
RSS link for this tag.