BizTalk (or at least biztalk.org) is dead:
BizTalk.org was created in September, 1999, to encourage the exchange and definition of XML-based documents. According to a recent posting to the XML-dev list, "now that XML is a ubiquitous format, the need for this site has diminished. Furthermore, there are other repositories now for XML schema (for example XML.org)". For these reasons, Microsoft will be shutting down the BizTalk.org web site on July 19, 2002.
