how to choice an ERP/CRM

Hello, I have run a web site to the open knowledge on the ERP/CRM (mainly these Open source). The topic of this site is to give acces to lots of open documentations about how to choose an ERP/CRM, how to migrate from one to another, and to stay in the spirit of the open source, not to be stuck on just one. For the start we have books for: Compiere, Dolibarr, ERP5, Hipergate, Jfire, Neogia, Ofbiz, Openbravo, Opentabs. All these programs are Open source. And of course we will try to get the information about some corporate ERP like SAP, Sage, Jeeves, ... Everybody's wellcome, Best regards, Alain Ivars www.choiceerp.org