Eric Petersen has put together a guide to web analytics resources, from the books that should be read to the tools to use. Eric is the author of Web Site Measurements Hacks.
Includes specifications and resources covering XForms, a "next generation" model for Web forms able to capture the device-independent data models and logic of form-based Web applications.
XLink was part of the original plan for XML, along with XSL, but has taken a long time to reach completion and has inspired few implementations. Bob DuCharme asks why.