CSSDeck is a cool place for HTML/CSS/JS Devs
Its about quite a few things. You can use CSSDeck to make testcases and share with other people on IRC, forums, StackOverflow, etc. who help you solve your coding problems. You can even code with multiple people in realtime in various modes. Remember etherpad ? Yeah we've got something like that for HTML/CSS/JS coding with lots of other bells and whistles.
If you're creating some cool crazy stuff with the powers of CSS3 and JS you can post it here and we're going to feature it in the gallery helping you get some fame as well as helping others learn about the cutting edge practices and methodologies.
You can also try creating or watching codecasts which is basically a recording of whatever code is typed in the code editors. This way other people can "playback" your recording in a video style and learn how the creation was developed.
Check out the Documentation.
A network catering to developers.
If you'd like to contact us, you can send an email to admin[at]cssdeck.com or tweet at @cssdeck.