This article will present the best Ruby tutorials, examples and downloads I've found over the course of the last year. I've spent numerous hours searching google, del.icio.us, digg etc.. looking for usable and relevant examples. This list only exists, because of the time and energy of the developers spent providing this information to all of us for free. If you find these tutorials and examples helpful please drop by the developers site's and let them know how much you appreciate their great work.

If you know of other Ruby tutorials, examples or downloads please submit a comment or email me. Thanks!

Downloads

Rails Blog Apps
Ajax Hierarchical Category and Calendar browser
For a Typo blog

Typo
Ruby on Rails blog software. (Related post: Ruby on Rails Blog Software)

Rails Wiki Apps
Hieraki
Open source, wiki-like system.

Instant Rails
Drop it in your directory - and you're done

Instiki
A wiki clone which is very easy to use.

Tutorials

Ruby Activity Indicators
Progress Bars with GD2 and Ruby
I went milling about for source for progress bars that would be suitably embedded within a Ruby on Rails application I'm working on and came up with nada.

Ruby Calendar
CalendarGrid
Ruby based calendar

Ruby Chat
AJAX powered chat in 3 hours on Ruby on Rails
A simple Web based chat built with Ruby on Rails. It seems to work okay, but I've only tested on FireFox and Safari. On IE it's bound to look totally out of wack as I'm not sure it supports position: fixed, which I used for the IRC-esque layout.

Ruby Image Manipulation
rmagick
Thumbnailer method for a Rails 'Photo' controller

Ruby Learning and Basics
Try Ruby
An interactive ruby tutorial where you can learn some basics right in your browser,

Tutorial in Ruby on Rails
As a newbie, getting started with Rails was tricky without some help from the IRC folks. If you get stuck, that's a good place for help, as the author hangs out in there pretty regularly. That said, some sample code is worth its weight in gold, so here's how I got a basic Rails application running.

Learning Ruby
A very good article on the basics of ruby.

Introduction to Ruby
For Perl programmers

Introduction to Ruby
For Mac OS X

Ruby Live Grid
AJAX Live Data Grid Example
Historically, data sub-forms are not something that have been presented well on the web. Pop-up windows and browser page refreshing are a significant regression from the interfaces which have been provided by client/server desktop applications for over a decade. Luckily, with the advent of Rails and its partials rendering, we are in a position to do something about this usability shortfall.

Ruby Login
LoginGenerator
Login & Authentication Generator

Ruby Text Editors
Integrate FCKEditor with your Ruby on Rails application
FCKEditor is an open source Javascript application for embedding a rich text box into an HTML form. I will show you have to integrate this application with your Ruby on Rails application.

Integrating a Rich-text Widget with Struts
The problem was straightforward, all I needed was a rich-text editor that would allow me to create XHTML that I could then send back to the client. I already had a textarea, and I just wanted a rich-text replacement. I thought this was going to be simple, but the problem cost me hours. In this entry, I show the process I used to identify a suitable AJAX/Javascript library, read on...

Ruby Shopping Cart
Open Source Ruby On Rails Shopping Cart | Sublog
The first and only Ruby

Ruby Helpers

Ruby Calendar Helpers
CalendarHelper
Select dates from a calendar popup or in-page

DynamicCalendarHelper
Renders a basic calendar in HTML. Highly configurable and allows for databinding as well as formatting

Ruby Drag and Drop
HowToUseDragAndDropSorting
How to use drag and drop Sorting in Ruby on Rails

Ruby File Uploader
TinyFile
For the longest time I just wanted a quick, ready-to-go example of how to do some basic file uploads in a real rails app. Welcome to TinyFile.

Ruby Live Trees Helpers
LiveTree
DHTML tree widget that can load data asynchronously as-needed

Ruby Pagination Helpers
PaginationHelper
Paginate large tables

Ruby Sorting Helpers
SortHelper
Click column headings to sort tables (uses Ruby to handle sorting)

SortHelper2
Another take on sort via clickable headers (uses SQL to handle sorting)

Sort Helper the third
Sort database result sets with clickable column headers (also uses SQL to handle sorting)

Movtable
A port to rails of Movtable, full featured sort table, filterable, with context menus.

JavascriptSortableTables
Not a Ruby helper as such, but it doesnt require Ajax, Ruby or SQL to work - it's all in client side Javascript


source

Thanks for the links. I was looking for this type of post and I think it will help me a lot.

wow! these resources are good! thanks praveen!
my eyes could not find although a link for begginer tutorials, can you recommend any? thanks!

I have a pretty good Ruby Tutorial. I built it mainly for new programmers that have not been exposed to programming.

THANK YOU SO MUCH FOR YOUR HELP!! This was honestly great!

Hi.
I know it's not an online resource, and it may not be the most up to date, but I would recommend Rails Recipes as a good book for people who want to learn how to do things in Rails.

It doesn't offer a full blown tutorial on what Rails is or how it works, it offers up a number of general programming problems such as building an authentication (login) system or how to auto-save drafts of articles, and it then gives you code to implement such things as well as an explanation of what's happening.
It's not a reference manual, but it's not like Railspace either, as you're not working towards building one thing, it's giving you code you can use at any time.

Some of the stuff really does come in handy too.
I used to use LoginEngine when I first started with Rails, but for some unknown reason, it killed itself after a while, leaving me with a nigh on useless code base which I ended up rebuilding.
Thanks to RR, I had the info required to build my own RBAC security system (each user has a role and each role has various rights, meaning the user can only execute an action block if their role has the right to do so).

Also, I'd recommend TinyMCE 3 as an integrated rich text editor as it generates fairly clean code (I get valid XHTML using it, which is very good for one of the more well known rich editors, which usually output invalid HTML).