Twitter Tools -
"* Archive your Twitter tweets (downloaded every 10 minutes)* Create a blog post from each of your tweets
* Create a daily or weekly digest post of your tweets
* Create a tweet on Twitter whenever you post in your blog, with a link to the blog post
* Post a tweet from your sidebar"
http://alexking.org/projects/wordpress/readme?project=twitter-tools
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Wordpress Twitter Sidebar Widget -
"The ability to customise the number of updates shown in your sidebar
Individual links to each status update on Twitter
Should match the current styling of your sidebar (depending on how you’ve styled lists)
You can style your Twitterings however you like using CSS. This opens up more options for you if you use Twitter as a mobile blogging tool
You can choose whether to display your Twitter name before each post
You can customise text between the post text and the relative time"
http://www.velvet.id.au/twitter-wordpress-sidebar-widget/
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Twitt-Twoo - Features
"Displays your latest Twitter status, and when it was last updated.
Displays your Twitter icon/avatar next your status.
Allows for easy updating of your status from the sidebar.
Updates using AJAX, so no page reload is required.
Provides a link to your personal Twitter page. eg. http://twitter.com/deanjrobinson
Provides a link to your Twitter RSS feed.
Simple options page located in admin Options->Twitt-Twoo
Provides a ready-to-use widget/module.
Comes with a new Twitt-Twoo icon, inspired by the Feed and Share Icon projects.
NEW - Caches your last ‘Tweet’, to improve page load times.
NEW - Option to hide your Twitter image if you want to. "
http://deanjrobinson.com/projects/twitt-twoo/
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WP Twitip ID - "WP-Twitip-ID Plugin - Add a twitter field to your comment form (easily)"
http://www.fiddyp.co.uk/wp-twitip-id-plugin-add-a-twitter-field-to-your-comment-form-easily/
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TwitThis "- TwitThis is an easy way for people to send Twitter messages about your blog post or website."
http://twitthis.com/
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TweetSuite - "a Twitter-WordPress integration plugin that includes the following features:
Server-side (no-JS or remote calls) TweetBacks
ReTweet-This buttons for each TweetBack
A digg-like Tweet-This Button
Automatic Tweeting of new posts
A Most-Tweeted Widget
A Recently-Tweeted Widget
A My-Last-Tweets Widget
A My-Favorited-Tweets Widget"
http://danzarrella.com/beyond-tweetbacks-introducing-tweetsuite.html
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Tweet This - "Adds a “Tweet This Post” link to every post and page. Shortens URLs in advance through Th8.us, eating up only 19 of 140 characters. Also included: Plurk, Yahoo Buzz, Delicious, Digg, Ping.fm, Reddit, and StumbleUpon. Includes the post’s title after the link (can be customized). If your titles are really long, they get cut off at 136 characters with “…”. Customize under Settings > Tweet This. Includes your choice of six buttons."
http://richardxthripp.thripp.com/tweet-this
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The Twitter Updater - "a wordpress plugin that automatically sends a Twitter status update to your Twitter account when you create, publish, or edit your WordPress post."
http://blog.victoriac.net/blog/twitter-updater/