Feng Office - Feng Office is a commercial Open Source web based solution aimed to enhance collaboration and productivity
Evercontact - Your contacts always up to date and automatically with Evercontact.
LibreOffice - Free office suite, open source, and compatible with .doc, .docx, .xls, .xlsx, .ppt, .pptx files. Updated regularly – download for free. Originally based on OpenOffice.org.
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
Redmine - Flexible project management web application
Pobuca Connect - Connect with your contacts.