Must know Ruby on Rails + Ruby plugins

I'm fairly new in the Ruby + Rails scene. Although I have a very strong understanding of design patterns, data structures and algorithms - there's a ton of "must have" plugins that I haven't had a chance to run into yet. There's things for migrations, resource controllers and a myriad of other plugins that make developing for these platforms significantly easier.

Would anyone be kind enough to share links for some of the most commonly used ones that every savvy Ruby or Ruby on Rails developer knows about. Something that's so important, that it might even开发者_如何学Go be considered to be merged into the core at some point.

Hope that's appropriate for this forum. I surely think it is.

---

The Ruby Toolbox is another invaluable resource for Ruby and Rails developers

---

Here is the link for rails top rated plugin.

http://agilewebdevelopment.com/plugins/top_rated

---

You can find all top rated plugin at github. Example:-These are some most usable plugins

http://github.com/thoughtbot/paperclip
2.http://github.com/mbleigh/acts-as-taggable-on
3.http://github.com/binarylogic/authlogic

---

RailsGems.org looks like it will be a useful site.