www.rpbourret.com/xml
www.xmldb.org
eXist
www.kegel.com/c10k.html
pl.atyp.us/content/tech/servers.html
ACE Framework
www.opengroup.org/onlinepubs/007908799/xsh/realtime.html
www.fatdog.com
www-106.ibm.com/developerworks/library/x-xquery.html
Seda
Apache Xindice
Efficient Storage of XML data
KAIO
Intro to O_DIRECT