Twitter Search

Starting at the top, it’s the web app formerly known as Summize. Twitter Search is the official search tool of Twitter. Purchased by the team at Twitter, it’s your best option for finding anything on the stream of the Twitterverse.

tweetzi

Another real time search, tweetzi is focused on searching trends and news that are currently popular on Twitter.

twitpic

twitpic was one of the first available Twitter spinoffs and it has remained quite popular. It allows you to share photos on your Twitter account using your phone, a web interface or the twitpic API. Many popular Twitter clients (TweetDeck, Tweetie etc.) have built-in support for this service.

yfrog

The other popular service in this category is yfrog. Run by ImageSchack, it allows you to share images as well as share video via your Twitter account. And like twitpic, it’s included in many popular Twitter clients.

twittervision

This is an interesting mashup of Twitter and GoogleMaps. Using a global map, tweets from around the world are displayed in real time. There is also a 3D version that displays a spinning globe to display the tweets of users from all over.

This is an entertaining use of the Twitter service.

Twitscoop

This service allows you to use the Twitter service itself, but is focused on the overall picture of what’s happening in the twitterverse. Rather than focus on the people you follow, Twitscoop encourages its users to “mine the thought stream” that is Twitter.

Twitter Grader

Do you ever wonder about the power of your Twitter profile? If yes, then Twitter Grader is for you. It calculates the value of your account based on several factors and gives you a grade out of a hundred. Items such as number of followers and the grade of those followers are used to determine your own grade.

It’s somewhat targeted at the self-absorbed, but amusing nonetheless.

TwitDir

Just as it sounds, this service is simply a directory of Twitter users. If you have ever struggled to find a user or friend on Twitter, give TwitDir a try.

cotweet

CoTweet is a relatively new service, but is one that appears to have a lot of promise. Hailing as “social CRM”, CoTweet is focused on helping businesses interact with users while giving a more human face to those interactions.

With the ability to assign tweets, support multiple accounts, and archive your activity, this service is a good option for bigger companies trying to manage the needs and requests of their customers.

GroupTweet

This is an interesting tool that uses the Twitter API to allow you to create groups. Using direct messages, you and your team can send messages only to the group using your personal account. These messages are not viewable in your public stream, but are visible to the entire group.

This is a useful option for anyone wanting a group communication tool.

doesfollow

If you’ve ever had to sort through a long list of your followers to look for a particular person, this service can be a good help. Do a simple one to one comparison to see if one person follows another.

FriendOrFollow

Similar to doesfollow, FriendOrFollow offers the same type of service. But rather than look at accounts one at a time, it scans your entire list. Discover the people you follow that don’t follow you back. Or vica versa.

QWITTER

A bit of a morbid service, as indicated by the sad, crying character on the home page. But if you want to know who stops following you, Qwitter will tell you.