- Microblogging - for messages 140 characters or less. Curriculum ideas! 
- Twitter Search Engine Curriculum ideas!
Bing Twitter Search
- Twitter search engine.
- Search photos being shared on Twitter
- #hashtag search engine/directory
- Twitter user bio search engine.
- Twitter keyword search/Google Map mashup tool. Search for people tweeting keywords within a set radius of a specific geographic location.
- Lyric Rat is naming that tune in 140 characters or less on Twitter.
-Twitter Directory
- Neat site that is kind of like a mashup between Google Earth and Twitter.
- map where the people you are following are tweeting from
- Twitter visualization tool that lets you see how people on Twitter are connected
- Real fun visualization of your Twitter followers. See yourself lead a parade.
- Displays a map of what topics are trending based on location. Great visualization tool.
- Browser-based dashboard for Twitter
- Twitter screencasting mashup tool
- record 3 minute screencasts and share them via Twitter, email, or Facebook.
- Leave a private voicemail for anyone on Twitter and they'll be notified via @reply.
- Allows you to tweet audio.
- Stream live from your webcam on Twitter
share images and video on Twitter
Post pictures and map them on Twitter
- Share documents (up to 15mb), pictures (up to 10mb), and video (up to 25mb) on Twitter.
- Share files (up to 20mb) over Twitter
- Twitter Analytics.png){kind=small}
- Twitter Analytics
- Twitter Analytics
- Twitter follower analysis tool 
- See Twitter like someone else
- helps you identify spammers and remove them from your follow list
- Let Google Suggest Twitter Followers For You
- See who is retweeting your tweets
- Search for who is tweeting links (good tool to see who is tweeting out links to your blog or website)
- List of tools that let you send DM to multiple people, follow multiple users with one click, and analyze followers.
- publish rss feeds to your Twitter account
- push your RSS feed to Twitter, Facebook, and Linkedin
- Twitter Automation Service: auto follow, reply, & DM users based on keywords, schedule tweets, and more. 
- Twitter Automation Service: auto follow, reply, & DM users based on keywords, schedule tweets, and more.(Also will work to auto post to Facebook or your Blog)
- Schedule Twitter, Email, or SMS messages to be sent at later dates.
-allows the Twitter user to compose a list of future tweets, and schedule their release.
- Sync your Twitter and Delicious accounts.
- Follow your Google Reader in Twitter
- Firefox add-on that lets you share sites across multiple social media platforms with one click.
- Schedule future tweets
- Create your own Twitter backchannel discussions
- Hold online course meetings using Twitter and Facebook
Twapper Keeper lets you archive #tag discussions from Twitter
- Capture your Tweets in a PDF ebook.
Backup tweets from multiple users into one PDF! 
- Summarizes the stream of Tweets you missed since your last login. Also, tracks trending topics among people you follow (unlike the Twitter main page that only tracks trending topics across all of Twitter)
- embeddable Tweet generator.
- Place post-it notes on any web page and share them on Twitter
- Create a post-it note on a a webpage, upload a file to that post-it to share with others, then share the post-it on Twitter.
- Post Tweets to your Twitter account via a phone call (voice).
- Start a Twitter Campaign
- Displays the 50 most tweeted links and shows you what people are saying about them.
- Clean up and manage who you follow, find out who isn't following you back, find out which inactive accounts you follow, easily search inside your Twitter stream.
- call anyone on Twitter
- With t.imo.im, you can instant message easily and securely with other Twitter users.
- Share lists of Twitter Users (allows users to follow all with one click)
- Set up your own microblogging community. Curriculum ideas! .png){kind=small}
- Edmodo is a private microblogging platform that teachers and students can use to send notes, links, files, alerts, assignments, and events to each other. Curriculum ideas! 
- This link is to Edmodo's mobile website, great for use on cellphones and iPods.
- Twitter-like private microblogging platform for schools.
- Video Microblogging - 12 seconds maximum Curriculum ideas!
- Create an internet chat room on the fly and share the link with people you want to chat with. 
- Combination online whiteboard and chat room. Moderator can also conduct a web tour.
- Online forum discussion site. Has potential for backchanneling.
- helps you embrace the backchannel and connect with your audience in realtime. 
- lets you create conversations on the fly, in meetings, watching TV, during class, on the train, anywhere and anytime.
- Create embeddable chat rooms for live blogging or backchannel discussions.
- URL shortening service that also allows you to upload and distribute files
- Turn lengthy URLs into short ones
- Turn lengthy URLs into short ones
- URL Shortener that lets you password protect the link