Tools - Open is the answer
- Chat: GAIM
- Co-browsing: JYBE (not open, but free)
- Course Management: CourseWork
- Content Management: Drupal, Mambo
- Integratedl Library System: Koha
- Self Checkout: LibLime
- Keystone
- Portal Creation and Management
- Federated Search Services
- Harvesting Metadata from Remote Repositories
- Link Resolver Service
- Blog: Wordpress
- Wiki: MediaWiki
- Folksonomies/Tagging: Freetag
- HTML/CSS authoring: Nvu
- FTP: Filezilla
- Office/Productivity: OpenOffice
- PDF tools: Ghostscript
- Desktop Publishing: Scribus
- Operating System: Linux