Paypal by Tobias Luetke - Primarily developed to help integrate PayPal with Rails applications. It works with PayPal's IPNs (Instant Payment Notifications). Source code demonstrations included.

A PayPal library that supports both Express Checkout API and the direct checkout API.

While playing around programming my first ecommerce application with Ruby on Rails, I felt like trying out some serious stuff like integrating PayPal web services and found some good info-threads on Google groups for soap4r and even a test script on the Ruby on Rails wiki. With all this help, I still struggled for a few hours to get things to work and the causes of errors were annoyingly banal (as usual...huh). I had to make some very minor corrections in the test code on the wiki to make the Pa ...

In this post i’ll explore some ways of using Ruby with an Oracle database. I’ve installed ruby on my windows laptop and i’m using Oracle Express Edition running on CentOS using vmware.

 A library that provides an interface between Ruby and Oracle 8.

An alternative ruby library for Oracle 7 users

A basic tutorial to setting up Ruby and Ruby's Oracle bindings on a Hewlett Packard UNIX based machine.

Information about Rails and Oracle integration. (may be outdated)

Setting up ruby to work with Oracle seems to be a pain for a lot of people. Here are the steps I follow to set it up on a linux box from nothing to Active Record or DBI in 7 steps.