OpenACS is a high-quality web toolkit for delivering community-oriented websites.
Built-in support for:
- Users and groups
- Permissions on pages by user or group
- Easy to use, but advanced, page templating
- Advanced database connectivity
- Message forums
- Ecommerce
Can be combined with:
- Static HTML pages
- SQL database access for your own customizations (all included in the base OpenACS install)
to allow you to rapidly develop and deploy feature-laden sites
