If you're using Symfony2, you already know that the framework uses 'bundles', the equivalent of plugins, if the core counted as a plugin too. (The official documentation calls bundles 'first-class citizens' in Symfony2.) So far so great idea, but an ecosystem depends on a community, and a community needs some kind of organization. So how is the Symfony2 bundle community organized, and how do you find existing third-party bundles?

KnpBundles provides a larger resource than Symfohub, but both have handy features to help you find what you're looking for - filtering, search recommendations and rankings.