I'm not sure how many people used it extensively besides me, but I just thought I should mention here that Shalabh Chaturvedi's XPCOM reference is online again, only this time it's at http://www.xulplanet.com/tutorials/xpcomref.
Like I said, I don't know how many people actually used this, but I use it a lot, which is why I requested (and received) permission to host it on XulPlanet. Aaron Andersen www.xulplanet.com
