ERP

Python

OpenERP (PostgreSQL XML)
Tryton (PostgreSQL XML)

Java

ADempiere

http://www.xtuple.com
http://www.opentaps.org
http://www.openbravo.com

http://pro.01net.com/editorial/518186/consona-s-empare-de-l-editeur-d-erp-open-source-compiere/
http://www.businessweek.com/idg/2010-06-16/consona-buys-cloud-erp-vendor-compiere.html

PHP

Dolibarr

Autres

)po( project-open (TCL)

Discussions

http://en.wikipedia.org/wiki/List_of_ERP_software_packages#Free_and_Open_Source_ERP_software
http://www.smile.fr/livres-blancs/erp-et-decisionnel
http://www.smile.fr/solutions/erp
http://doc.openerp.com/v6.0/developer/6_22_XML-RPC_web_services
http://opensourceerpguru.com/tag/erp-comparison/
http://petermoulding.com/cash_books http://petermoulding.com/comment/4548#comment-4548
http://www.onestopjoomla.com/extensions/crm-erp
http://www.erp-infos.com/info_article/m/708/les-erp-open-source-gagnent-en-maturite.html
http://open-tube.com/12-free-and-open-source-erp-business-software-solutions
http://www.humanflash.com/support/evaluation_guide.html
http://consultbenefit.com/operations/open-source-erp-a-pocket-friendly-option
http://www.open-source-erp-site.com/list-of-open-source-erps.html
http://www.infoworld.com/d/applications/sourceforges-top-projects-open-source-erp-888
http://www.informationweek.com/news/software/productivity_apps/229000482
http://swik.net/ERP+PHP
http://www.wareprise.com/2008/10/13/latest-list-of-top-open-source-erp-solutions