“What are you doing right now?” That’s the basic question of Twitter, but sometimes simply telling people isn’t enough; sometimes you need to show them via a link or a photo. And the two Twitter clients reviewed here make sharing that information even easier. Much like JustUpdate, these programs are focused on posting information, neither one is set up to let you read other people’s Twitter feeds, or even your own Following page. Both work with the iPhone and iPod touch, and both are free.

Since Twitter sprang from the idea of sending text updates from a cell phone, why not also post pictures? While there are several ways (and services) to do this, the two easiest I’ve found are TwitPic and Skitch, both currently free, and can be used from a browser or cell phone. Since Twitter itself only allows text, the services work by posting a link to the photo hosted on another site.

Twitterfon is a small, fast Twitter client that includes support for adding pictures and location info to your Tweets. So far, it’s the closest I’ve come to having the full web experience on my iPod touch. The strangest thing about it is that it’s free; not even ad-supported like Twitterrific, which used to be my primary Twitter client. Small, fast, and free with a plethora of features, some of which go beyond what Twitter itself offers. What’s not to love?