Microblogging Apps
Taweet
Taweet (beta) is a free Twitter application and social calendar that allows people and businesses to streamline promotional scheduling for events, product launches, lifecasting and more!
Hashwork
Hashwork is a social business tool which helps your company adapt to this change in two ways: (1) Hashwork provides a social presence on the web for your company and your community of employees, customers, prospects and partners, and (2) Hashwork equips everyone in your company to “work socially,” by connecting and sharing Twitter-style with customers, partners and others on the internet — publicly and privately.
BigTweet
BigTweet installs easily and quickly as a bookmarklet on all the major browsers and allows you to post to Twitter from any web page.
What the Hashtag
What the Hashtag?! (wthashtag) is a user generated encyclopedia for hashtags on Twitter. On the site you can discover the definition and background of hashtags and find a variety of tools for users to engage and monitor hashtag conversations.
Tweetie for iPhone
Tweetie is a Twitter client for the iPhone and iPod Touch.
TweetMeme
TweetMeme is an aggregation service for Twitter. TweetMeme is able to categorize these links into categories and subcategories, making it easy to filter out the noise to find what your interested in.
StockTwits
StockTwits is an open, community-powered investment idea and information service.
HelloTxt
HelloTxt is an application that allows you to update your status across all microblogging and social networks at once.
Twingly Microblog Search
Twingly Microblog Search is a search engine for microblog services like Twitter, Jaiku and Identi.ca. Features include RSS and Email Alerts, Widgets and Excel-export.
ChatterBox
ChatterBox is a platform that allows you to monitor conversations of interest on Twitter.