TweetDeck the popular Twitter client for desktop and iPhone is set to introduce support for LinkedIn in the latest build. In addition to that, they will also be adding support for Twitter Lists.

Brizzly is a web-based Twitter client that offers a lot of unique features and hassle free management for your Twitter account.

Tweetwally lets you create a wall of selected tweets. You can use it to display tweets from a specific hashtag, user or keyword. You can also create a public web page for your wall or embed it on your blog or website.

Twitter launches the new Retweet feature. The new Retweet feature from Twitter allows you to retweet your followers’ tweet and organize it well. This feature is

Sprouter is a micro-blogging social network focused on entrepreneurs. It is very similar to Twitter and offer almost all the features that Twitter does.

Tvider is a great Twitter app to share pictures, audio as well as video files on Twitter.

Twitter started rolling out the retweet feature last week but has temporarily disabled it due to some problems.

CustomFacebookPage is a great collection of unique and custom design Facebook pages for inspiration.

Conversationlist is a free service which analyzes your twitter stream and automatically creates personalised twitter lists for you.

You can easily create a widget for any public Twitter list and integrate the widget in your blog, website or social networking profiles. Twitter has an official list widget that let’s anyone display a public Twitter list as widgets.

Twitter trending is a great feature to know what’s happening in the world. Twitter is now rolling out a new API that will allow users to see trending topic for their own city.

Twitter has finally started rolling out the retweet feature. It also includes the ability to undo a retweet.

Facebook may be gearing up to integrate XMPP with Facebook Chat soon. This will allow interoperability with Google Talk and Jabber clients.

TwittMyFile is a handy application, which will allow you to upload and share files on twitter using FileSocial. You can easily drag and drop files and share them on twitter.

Google has rolled out a new interface for Orkut. The new Orkut interface consists of several changes and addition of personalization options. Google is trying to revive Orkut by adding features to stem the flow of users moving to other social networking sites like Facebook and Twitter.