Tweetify is a jQuery social sharing plugin which displays a Twitter logo to tweet a specified piece of text within your article on Twitter.
jQuery Plugin To Get Likes, Comments and Tweets From An URL - Social Stats
Highly Configurable jQuery Social Share Plugin - Sharrre
jQuery Plugin To Make Your Site Content Tweetable - Tweetable
Generating Custom Twitter Share Links with jQuery - Tweetable
jQuery Plugin For Turning Html Content Into Tweetable Quotes - ProQuo
Minimalist jQuery Tweetable Text Plugin - Tweet Highlighted
Modal-like Twitter Tweet Window Plugin With jQuery - tweetr-js
Customizable jQuery Plugin To Tweet Highlighted Text - quoteShare.js
jQuery Plugin To Share Specific Text On Twitter - Tweetify
jQuery Plugin To Convert #Symbols Into Twitter Hashtags - Hashtagger
jQuery Plugin To Tweet Quotes From Your Articles - Tweetthis.js
jQuery Plugin For Tweetable Website Content - tweetable.js
SocialCount - Mobile Friendly Social Networking Widgets
Retweet Your Page With Predefined Message - mb.retweet
jQuery Plugin For Tweeting User Highlighted Text - Tweetit.js