History of D&D... Live!

Gavin at the City of Iron has a short visual history of D&D and the retro-clones. There's been several of these, but I wanted to draw attention to this because it taught me something else. I'd known that you could use Google Docs for collaborative editing, but I didn't realize that it actually does live updates. So, I was kind of surprised when I was looking at the page and suddenly Legends of the Flame Princess appeared out of nowhere, moved a little to find its position in the third column, and then a caption appeared under it... which said "OSRIC" at first, but then it changed to the correct caption.