[Discover] Sedna XML database http://modis.ispras.ru/sedna/ (xml xquery opensource database)
 [Discover] WikiXMLDB: Querying Wikipedia with XQuery http://wikixmldb.dyndns.org/ (xmldb xquery sedna xml)
 [Discover] Apache Xindice http://xml.apache.org/xindice/ (xml opensource apache source)
 [Discover] eXist - Open Source Native XML Database http://exist.sourceforge.net/ (xml database xquery opensource)
 [Discover] Oracle Berkeley DB XML http://www.oracle.com/database/berkeley-db/xml/index.html (xquery xml opensource programming)
 [Discover] Mark Logic http://marklogic.com/ (xml xmldb xquery)
 [Discover] Xindice 1.1 Internals Guide http://xml.apache.org/xindice/dev/guide-internals.html#1.%20Overall%20Xindice%20architecture (manual competitor xmldb xindice)
 [Discover] XML as a Content Platform | Dr. Dobb's - settembre 11, 2008 http://www.ddj.com/web-development/210601036;jsessionid=5YTWYD4FMM0OSQSNDLPSKHSCJUNN2JVN (xml xmldb article marklogic)
 [Discover] MonetDB/XQuery Benchmark Reports http://monetdb.cwi.nl/projects/monetdb/XQuery/Benchmark/index.html (xmldb monetdb benchmark)
 [Discover] rpbourret.com - XML-DBMS: FAQs http://www.rpbourret.com/xmldbms/faqs/manytomany.htm (xmldb reference)
 [Discover] Rubyist Magazine - RubyOnRails を使ってみる 【第 9 回】 Rails で XML-DB にチャレン http://jp.rubyist.net/magazine/?0018-RubyOnRails (tutorial xml rails xmldb)
 [Discover] XML-DB.html http://ruby.ils.unc.edu/~kphil/db2present/Presentation.html (xml xmldb xquery xpath)
 [Discover] Sedna XML Database http://modis.ispras.ru/sedna (xmldb xquery opensource databases)