One of b2evolution’s design goals was to not require plugins for most common situations, in order to avoid "Plugin Hell".

For example, advanced features such as SEO options and Server Side Analytics are already integrated into the back office.

This is one area were b2evolution’s design is 180 degrees opposed to WordPress for example.

However, for the users who demand further customization and functionality, a Plugin API is available and several plugins are available for download – check out the Plugin Directory.