xhtmloutlines - Technorati Developers Site

You can define your tags in a custom DTD to extend XHTML1.1 Then when your users write their templates they can use that DTD in the Doctype declaration of the page

Netcraft | www.sco.com is a weapon of mass destruction

good link to give to non-geeks

What problems might Orkut solve that Google would otherwise find significantly more challenging?

Google vs. Microsoft?