I've been with my avatar (a digital character) Fraser Fonda on Architecture Island in Second Life. We have used SL as a kind of studio and discussion space sometimes during the project. Working there made me think about different types of images existing there, the avatar, the digital model, the photograph, an animation. It reminded me that when Marcus talked about dimensions beyond the 3rd he said that the 4th wasn't just time as many of us think, but the dimension consisted of information, eg the stock market figures, or the temprature etc. A virtual world allows us to embed text and links to other webpages in the digital objects. At the moment this version of the 19th step dance floor in SL has the address of the 19th step webpage embedded as a rolling text, Marcus's mapping of the library of Babel is repeated and animated in a digtal model that cuts through the space, I could also add sound files, animate avatars to dance, give out note cards, and video extracts as well as holding live events in real time.