What rails plugins are good, stable and *really* enhance your code?

Question

Anyone have a list of rails plugins that are both stable and give you enough functionality to be worth the extra effort of supporting?

Edit:

I am mos

Answer 1

Ruby Trends is a good place to check what the most popular plugins/gems/books/practices are. It's like StackOverflow (i.e., voting plugins up/down) but is more fine-grained and has the ability to search/filter.