Technical communication

Dublin Core Metadata Initiative

Link: 
http://www.purl.org/dc
The Dublin Core is a metadata element set intended to facilitate discovery of electronic resources

The XML cover pages

Link: 
http://www.oasis-open.org/cover/xml.html
Huge listing of everything from technical specs, software, mailing lists, books etc

Apache to create XML open-source tools

Link: 
http://news.cnet.com/2100-1001-232598.html&tag=st.ne.1002.thed.1003-200-431504
The Apache Software Foundation, a nonprofit organization that builds free Web technology, is now turning its attention to Extensible Markup Language