Rails plugin development documentation and resources

Are there any resources or documentation开发者_JAVA技巧 for developing Rails plugins?

I'm using other plugins as examples, but it's hard to know if I'm doing something wrong, or if there's another way to do something. All I can find are old blog posts. I haven't found any documentation on how to develop plugins and what functionality/hooks are available.

Check this very good list:

• HOWTO: Make A Rails Plugin From Scratch
• Rails Plugin Tutorial
• Demystifying Rails Plugin Development
• How to write a Rails Plugin (for controllers)
• The Basics of Creating Rails Plugins
• Build Your Own Rails Plugin Platform with Desert
• Extending Rails: Understanding and Building Plugins
• Screencast: How to develop Plugins in Rails - The Basics(View all the other 4 parts)

Also, to improve your knowleadge, I'm going to suggest some resources to learn about Gem development:

• Creating Your Own Gem
• Creating a gem under Ruby
• Creating a RubyGem Package

In this tutorials and How-Tos, you will learn very good(and much) about this very nice and useful world ;)