We've moved the plugin list from the wiki here to the forums. We'll enable write access on this post the developers who have forums here. We'll also consider adding others as well - there are users developing plugins that don't necessarily want a forum and/or don't want ongoing support responsibility. We also have some plugins that are open sourced which should be listed.
Each topic in this forum represents a category and the post will have a list of plugins in that category. Hopefully this will make finding plugins easier.