This is an active post and it will be updated now and then when ever i come forward any interesting gem which is really awesome and helpful. Git-hub looks to me a like a gold mine for developers, and here are some of the treasures :
– Devise is a flexible authentication solution for Rails based on Warden.
– Is Rack based.
– Is a complete MVC solution based on Rails engines.
– Allows you to have multiple roles (or models/scopes) signed in at the same time.
– Is based on a modularity concept: use just what you really need.
– url : https://github.com/plataformatec/devise
– Rails cast tutorial : http://railscasts.com/episodes/209-introducing-devise
– Sass makes CSS fun again. Sass is an extension of CSS3, adding nested
rules, variables, mixins, selector inheritance, and more. It’s translated to
well-formatted, standard CSS using the command line tool or a web
– Bootstrap is Twitter’s toolkit for kickstarting CSS for websites, apps, and
more. It includes base CSS styles for typography, forms, buttons, tables,
grids, navigation, alerts, and more.
* Tabs on Rails
– TabsOnRails is a simple Rails plugin for creating tabs and navigation menus.
It provides helpers for generating navigation menus with a flexible interface.
– Watir, pronounced water, is an open-source (BSD) family of Ruby libraries for
automating web browsers. It supports your app no matter what technology it
is developed in. They support Internet Explorer on Windows, Firefox and
Chrome on Windows, Mac and Linux and Safari on Mac.
– Radiant is a no-fluff, open source content management system designed for
small teams. It is similar to Textpattern or MovableType, but is a general
purpose content management system (not just a blogging engine)
– Geocoder is a complete geocoding solution for Ruby. God dammit its so easy to implement and your app is packed all the google maps goodness in minutes.
– url : https://github.com/alexreisner/geocoder
– Tutorial : http://railscasts.com/episodes/273-geocoder