Yay Hooray (http://www.yayhooray.com/) is a message board pertaining to Web design and development, and for the community that has sprung up as a result of interest in these technologies. Many of the early members of Yay Hooray were also members of the late Dreamless messageboard, and as such Yay Hooray is sometimes compared to a "Dreamless 2" of sorts.
Unlike many message boards, Yay Hooray uses a "status" system, in which members have a status level from 0 through 10. All joining members are a zero initially, though they immediatly request level one. When members are granted a one, they may begin post threads and replies. Higher level members moderate lower members, and the highest levels can move and delete threads. In this manner (though the system is still fairly buggy and the cause of dispute), people are encouraged to participate and be helpful.
Yay Hooray was started by Jake Nickell, of http://www.jakenickell.com/, and Jacob DeHart, of http://www.jacobdehart.com/. The "pinkies" and "greenies" were designed by Charles Foreman of SetPixel (http://www.setpixel.com/). Founding members also include Nando Costa of Hungry for Design (http://www.hungryfordesign.com/), Rob Irrgang of Unlinear.com, Corrine of corsatki.com, Wevah of Derailer (http://www.derailer.org/), Daniel Vena of vena.net, Kevin Mangan of MediaPloy (http://www.mediaploy.com), Geoff (Spydr) of Deconcept (http://www.deconcept.com/), Jemma Gura of Prate (http://www.prate.com/), Andy Short of superFunky (http://superfunky.2y.net/), Chris Casciano of PlaceNameHere (http://www.placenamehere.com/), Nifkin of nifkin.de, Shane da5id Witschen of Winter-Mute (http://www.winter-mute.com/), and Eric AKA the Count.
(That last section was so I could create more cross-links.)