DbcDOM (Popularity: )
http://dbcdom.sourceforge.net/ XML library for DATABUS language. There are basic functions for export/import XML files. Contains additional classes for LinkedLists, Stacks, and ...
Ipedo (Popularity: )
http://www.ipedo.com/ Native XML database and cache engines for portal, intranet, b2b, e-commerce, and wireless services
Xyleme (Popularity: )
http://www.xyleme.com/ Dynamic data warehouse that is an indexed XML repository capable of answering queries from applications and users.