FLOSSMetrics, with funding from the European Union, has just published a guide on FLOSS use by small business.

It covers much of the same ground as NOSI's own Primer, but with maybe a few more stats and quotes, including:
- what is free/libre/opens ource software
- ten myths
- selecting software
- adoption strategies
- business models

It comes with an accompanying Catalog which reviews dozens of software packages in the following categories:
- Infrastructural software
- ERP/CRM
- Groupware
- Document management
- Content management systems
- VoIP, conferencing and messaging
- Graphics and CAD
- Desktop
- Engineering and manufacturing
- Vertical business applications
- Elearning applications