LinkedIn Groups for Designers: 

Discover like-minded professionals and join discussions. Use this directory to browse groups in alphabetical order.

HTML5 & CSS3:http://www.linkedin.com/groups/CSS3-HTML5-future-front-end-2071438?trk=myg_ugrp_ovr

DESIGN:
http://www.linkedin.com/groups/Design-154543?trk=myg_ugrp_ovr


XHTML & CSS :
http://www.linkedin.com/groups?gid=2179448&trk=myg_ugrp_ovr


UI Designers:http://www.linkedin.com/groups?gid=715247&trk=myg_ugrp_ovr
http://www.linkedin.com/groups?gid=2125961&trk=myg_ugrp_ovr
http://www.linkedin.com/groups?gid=142890&trk=myg_ugrp_ovr
http://www.linkedin.com/groups?gid=1913577&trk=myg_ugrp_ovr


UX/UI Designers:
http://www.linkedin.com/groups?gid=2483594&trk=myg_ugrp_ovr


CSS:
http://www.linkedin.com/groups?gid=128819&trk=myg_ugrp_ovr


Rich Internet Applications:
http://www.linkedin.com/groups/Rich-Internet-Application-RIA-129711?trk=myg_ugrp_ovr


Web Designing:
http://www.linkedin.com/groups?gid=2159694&trk=myg_ugrp_ovr


Creative Designers & Writers group:
http://www.linkedin.com/groups/Creative-Designers-Writers-2215425?trk=myg_ugrp_ovr


Designers - Web/Graphic, User Experience (UX, UI), Interaction...
http://www.linkedin.com/groups?gid=2782693&trk=myg_ugrp_ovr