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TrendPortal aggregates news and videos based on current and past twitter trends. It essentially allows people to get more insight into trending topics.

This Twitter based website allows users to tweet about what makes their jobs easier.

These tweets and any others containing the growing hashtag of #makesmyjobeasy are then displayed on the website for others to view and benefit from.

Seesmic Desktop: Get Facebook + Twitter on your Desktop, now including comments and likes!

Follow your friends from Facebook and Twitter and update your profile from Seesmic Desktop.

Staying in touch with your friends and building your community has never been that easy.

It is available from today as a free download.

Watch events unfold as they happen on a map. This is a customizable component that is available for purchase to be used on your own site.

GeoChirp helps you search for people Twittering for specific things in a specific area.

poliTwitter is a non-partisan service that strives to connect elected MPs & MLAs with the Canadian people. Encouraging all MP's to join in order to make government more transparent. From one easy location keep track what your politicians are saying and doing and what regular Canadians have to say about current politics.

Twitter SPY displays the Twitter public timeline in a fancy and addictive way with Google Maps and some optional filters.

Add your Twitter backlog feed to your favorite calendar application and browse through your personal Twitter diary, making your Twitter history both fun and useful!

It allows perfect interaction between Windows Live messenger and your Twitter account.

Twessenger is a Twitter add-in application for Windows Live Messenger. It automatically updates your Messenger Personal Message to reflect your latest Twitter tweet.