Here is a jQuery plugin for showing the latest tweets about a certain word or phrase. This plugin use jQuery Twitter Search Plugin.
tweetParser is a minimal jQuery plugin that automatically parses @usernames, #hashtags and URLs within your text and turns them into Twitter links by using regular expressions.
InlineTweet.js allows you to easily create tweetable links out of any text on a webpage. Just wrap the tweetable text in a container with data-inline-tweet and it's ready.
ClassyTwitter is a jQuery plugin that gives you the ability to show your last tweets from Twitter in a nice interface.
HubInfo is a jQuery plugin to show information about your GitHub repo. It weights at only at around 2KB and has a tweet option included.
Tweed is a jQuery plugin for displaying a simple feed of recent tweets.
MiniTwitter is a jQuery widget which puts Twitter and your tweets on your Website or your WordPress blog.
Twit is a jQuery plugin to display Twitter tweets on a blog.