Coroflot - Showcase your portfolio, look at other designers and likey stuff.
Tuvie - Future technology, Design etc...
IDSketching - Sketching tutorials
Upper Playground - Graffiti hub.
Bright Idea - Design Company for industrial designer, Omar Bailey.
Dap&Co - "A fine selection of tshirts, art, and accouttrements".
Edge - A Mag For "Forward Thinking Teens"
Fresh Design Blog - Design blog with some pretty cool posts.
Ryan Salisbury - Young artist showcasing his multi-faceted talent (Film, photography, music etc...)
Square Space - A great way to host a blog.
Portfolio Showcase - Showcase your portfolio and check out others.
Embody3d - Industrial designers resource.