Twitter Places

Twitter Places - tag #Twitter with your location as well as view tweets from a particular location

feedly

feedly - a magazine-like start page based on Google Reader and Twitter

Snap Bird

Snap Bird is an innovative Tweet search application that helps you find older Tweets

MarketMeTweet

MarketMeTweet - Twitter Marketing Tools, Branding Applications for Business, Professional Users

t.imo.im

t.imo.im - where Twitterers chat among themselves

Zoofs

Zoofs is a new way to discover YouTube videos that people are talking about on #Twitter. Zoofs orbits around the Twitter sphere, eating through piles of tweets everyday, in search for the most tweeted YouTube videos, and applies a weighing recipe to rank them based on their popularity

ManageFlitter

ManageFlitter - 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