Instructional design in virtual worlds

This image (click to enlarge) was taken at the American Society for Training and Development (ASTD) location in Second Life (SL). I found it was an effective instructional design example and wanted to post it on my blog. It is strategically placed when you arrive at the ASTD headquarters in SL so that, as a first-timer, you can quickly get up to speed and start making your way around in SL. This makes me think about my profession and whether there are different techniques for improving technical communication in a virtual world.

As a member of the Society for Technical Communication (STC) and working as an instructional designer for online learning, I've often seen the overlap between the two fields. Most of the people I know in the technical communication field specialize in writing. I think as more people go online for learning and training, the shift toward more visual instruction is necessary. Why? It is too difficult to sit and read large amounts of text while staring at a screen for long periods of time. I'd like to see an area of training develop on how to best instruct for virtual worlds. I will definitely continue exploring this while I build training there. I would also welcome any tips, books or links anyone would like to share on how to improve instruction in SL.