Badges and Widgets

Socialized Card : Lets your followers access your entire social network profiles. Socialized Card holds your entire social identity. Let your viewers connect with you on all social network site's you belongs to using your twitter profile url
Twitter Widget - Lightweight Javascript Twitter Widget. Shows your latest Tweets in the sidebar of your blog or on your webpage. You can customize colors, numers of tweets, dimensions and many more. Scripts are hostet on Twitter.com! No extra load for your server.
Twitter Goodies WordPress Plugin - Twitter Goodies Profile Widget + Twitter Goodies Search Widget + Twitter Integration (wp to twitter). This plugin will show your twitter tweets under Sidebar Area (Widget), Post and/or Pages. Tweets will REFRESH AUTOMATICALLY. This twitter widget is using Twitter Goodies APIs. Integrate Post to Twitter option added to v1.0.1. Best Twitter Tools and nice Twitter Widget GUI.
Osnapz - Osnapz provides recognition of social media efforts and achievements by awarding badges of accomplishment to users on Twitter and a variety of social networks.
Twigroups - It helps Twitter users to unite in groups of interests, to identify their avatars with a branding logo of their preferred group.

Tagnic - is a reputation game that you play with your friends and followers on Twitter. Trade points with other players and earn badges to display on your Twitter page.
AddToAny - The Share/Save button for your website or blog helps visitors easily share your links to Twitter and over 100 other services.
BloggyBits - A flash widget that shows your latest activity at twitter and a number of social sites right in the sidebar of your blog.
TwitterThisPost - Adds a "Post to Twitter" link to your blog post. Comes with build in shorturl service.
TwitterWidget - Shows your latest Tweets in the sidebar of your Wordpress blog.
TwitPic - Shows your latest pictures from TwitPic.com in the sidebar of your Wordpress blog in a Flickr like style.
Tweetle - Contextually analyzes a web page to extract the important topics and display recent related tweets.
Twitter Followers Widget - Twitter is a great way to display social proof. Easily show your followers on your blog, website or profile with this widget.
Twitter Friends Widget - Display the people you are following with this handy widget. NO PASSWORD.
GeoTweeter Widgets - Display all your GeoTweets in a map widget that updates live from your twitter feed to display where you are, where you've been, and all the photos, notes and ratings you've made along the way.
Twackle - Widgets for sports teams, athletes, and sporting events.
Twitter Name Tag - create and print a unique twitter nametag for your next meeting or social gathering.
Sprout - Create a rich multimedia widget that pulls in your Twitter feed and photos.
TwitterSALT- Twitter to Image: Monitoring & Conversion Service. Paste one line of HTML into any web document and your twitters will show up in that document from one to three minutes after you twitter. Works on MySpace, Facebook, Craigslist, BBS Forums, email, and, of course, your own blog or webpage.
TweetRoll - Add a badge to your website or blog to show avatars from other tweeter you're following and how many followers/friends you have. Now with personalisation options to let you specify colours, size and tagline. Also available as a Wordpress widge
SayTweet Twitter Badge - Create a Twitter badge using your own picture! Upload a picture, tag users in that picture, and have their tweets appear in speech bubbles. Embed the badge in your blog, website, or MySpace!
Kent Brewster's Twitterati Badge - Interactive Twitter badge; single-line JavaScript include, highly customizable, lets you start with your followers (or mine, or anybody's) and surf around from follower set to follower set.
Netvibes Twitter Widget - Official Netvibes Twitter Widget
Twitter King Widget - UWA for Netvibes and Google by Porno Schorsch
Twitter Web Badges - The official Twitter web badges (available in Flash or Javascript flavors) for showing your recent tweets or friends list on your web site.
Chris' Twitter Badge -- a simple javascript badge that matches Twitter.com's color scheme. Code included.
Jon Aquino's Twitter Badge - a modification of the official Javascript web badge that shows multiple recent tweets and fixes a date parsing issue in IE. Source code included.
Morgan Aldridge's Twitter Badge - another modification of the official Javascript web badge that shows one or more recent tweets, the twitterer's icon, links to tweet permalinks, and has more CSS hooks for better styling. Source code included.
Wishafriend.com Twitter Widgets - Display your latest Tweets (Twitter updates) on your blog, website, myspace profile or anywhere else in a cool flash widget. Themes include flowers, smileys, hearts, etc.
Twitter WordPress Sidebar Widget a WordPress Widget plugin for your blog as an alternative to the badges provided by Twitter.
Twitter Planet -- a Twittervision-like Windows Live gadget.
Twitter Flash Clock - flash clock which can be embed on twitter pages.
WithFriendsHtmlTwitterBadge - an HTML Twitter Badge that shows the "With Friends" feed.
Tweets -- iGoogle gadget (can be used also for OpenSocial containers).Navigation through the social graph of Twitter users, showing their tweets and persons they are following. See also http://gmodules.com/ig/creator?synd=open&url=http://www.openopensocial.com/apps/tweets.xml for web version (430px wide).
TwitterCard -- Create a 125x125 Twitter business card widget to put on your blog and display bio and recent status.
TwitterMySite -- Create custom "follow me" buttons for your blog with any text included in the image!
Sigpad -- put your Twitter status in your email signature.
TweetThis -- Add "TweetThis" button to your blogger.com blog and increase the visibility of your blog post. Let your blog readers to tweet about your post with a simple mouse click.
TwitIMG -- Provides you with an automatically updating image for use on forums and blogs. Just tweet, your image is updated with your latest tweet.
Twitter Buttons - Hundreds of original Twitter buttons and badges - transparent, cute, animated.
allyve Twitter Widget - Official allyve Twitter Widget
Twphper - An open source Twitter Widget that lets you display your tweets on your website. Powered by PHP.
TwtTRIP - Add a widget with your upcoming trips (by @twtapps)