twitalyzer - this is the best Twitter stats tool so far, very nicely laid out
Twitterfall - a stream of Twitter trends, query a new trend…you can also login and view your time line
TwitterMapper - when you tweet just include #at followed by your location, and this will show your tweet on a map on your TwitterMapper profile (it also supports the #loc hashtag). You could also use it to map the location of where you took that Twitpic, I don’t have to worry about this as I use Twitxr. The homepage will show tweets on a map of your Twitter friends who use TwitterMapper.
Similar to Brightkite you can also make nicknames for locations
eg. Having a coffee #loc home.
Another feature is trails, which draw a line as a path between tweets (you can turn these on or off)
It would be good if you could make a series and then save it as a trail. That way people could click a series and look at the trail of your past bush walk, plotting all the points on the map and all the photos you took. I posted a couple of years ago on being able to save a bunch of linear tweets into one episode, also see Twitter Soap. Datablogging does episodes for blogging.
This is something Twitter ought to offer, as a manual location awareness aspect of presence. Brightkite only has early adopters and Google Latitude is going for this market. TwitterMapper simply demonstrates that this is a logical extension of Twitter. To make it even easier, Twitter Mobile web could have a field for location (just like Twitxr, and GeoTwitter), so you don’t have to use a command operator.
Actually a really simple version is GeoTwitter.com, the difference is that TwitterMapper gives you a profile page, and a homepage to see all your Tweeps. An yet another similar service called Twither is launching soon.
Tweepler - a Twitter follower management tool, also see Tweeple Twak. What I like about Tweepler is you can process all those new people who follow you. Personally I don’t get time to see who follows me, but Tweepler is a good tool to manage this process, it just makes it easier, and perhaps worthwhile. Basically you can view a list of people you are following you, and quickly know more about them without having to click to their profiles, then click to follow or put them in the ignore bucket. It also has search.
I’ve just been processing and this tool is a must have, Twitter really ought to acquire these guys.