The best way to acess, make and modify .csv files..!!

Excellent for uploading files. Supports storage on S3, filesystem etc. works well with ImageMagick and RMagick

This one was obvious of course! Ruby On Rails rocks!

Absolutely the best way to parse HTML/XML in Ruby.

A DSL for quickly creating web applications in Ruby with minimal effort.

The code smell detector for Ruby

best way to post multipart http request

Devise is a flexible authentication solution for Rails based on Warden.

PDF generator

E-Commerce

Cucumber lets software development teams describe how software should behave in plain text. The text is written in a business-readable domain-specific language and serves as documentation, automated tests and development-aid - all rolled into one format.