Here's a few drawing programs that are cheap or free, and work well.

Makers of Paintchat
Paintchat is a java based drawing app. The above link contains the downloads and server files needed to run your own, if you're looking for other paintchats, try typing in paintchat in google. There are quite a few of them.


Open Canvas
Open Canvas is perhaps the most userfriendly drawing application around. Especially if you have a tablet pen. It's brush tracking is excellent, and you can rotate the entire canvas with the mere click of a button. Excellent way to sketch.


If for any reason you don't know about painter or photoshop, then look them up on google.

(The list will be added to over time. If you know of a good drawing app not listed above, then please pm me. If a link isnt working or one of the websites has changed, then please notify me.)