CodePlex has a project for SharePoint 2007 Features. Within this workplace there are features like:
- Ajax Config Feature
- Content Type Hierarchy Feature
- Debug Config Feature
- Debugger Feature
- Features Source Code
- Log Viewer Feature
- Manage Configuration Modifications
- Manage Form Users Feature
- Manage Hierarchical Object Store Feature
- Manage Layouts Site Map Feature
- Minimal Master
- Minimal Publishing Site
- Placeholder Master Feature
- Presence Contact List Feature
- Print List Feature
- Task Alert Feature
- Task Mover Feature
- Theme Changer Feature
- Window Links Feature
Especially the Ajax Config Feature is great. In the future I will release more Webparts based on Ajax. This makes it much more easier to deploy them :-)