Install the Oracle DBA Toolbar

The Oracle DBA Toolbar (available for Internet Explorer only at the moment; a Mozilla/Firefox version is forthcoming) gives you one-click access to key DBA resources on OTN.

Features:
* Pop-up Blocker
* Integrated RSS Manager
* OTN Search
* One-click access to SQL*Plus install, Downloads, MetaLink, and more
* Online Support FAQ
Oracle DBA Toolbar

Developer: Open Source

Ruby on Rails with Oracle FAQs by Casimir Saternos

What is Ruby?

Ruby is an object-oriented interpreted scripting language created by Yukihiro Matsumoto. Since the mid 1990s, it has grown in popularity in Japan and has gained recent attention as the language behind the Rails framework. You can use the language for a striking variety of functions?from basic scripting to creating Windows applications to developing Web applications. You can start using Rails without extensive knowledge of the language; the Rails framework generates the fundamental classes needed for the Web application and uses reflection to perform object-relational mapping to the database.

OTN's "Greatest Hits"

The Oracle Technology Network (OTN) "Greatest Hits" CD is a compilation of the most popular technical articles, software downloads, podcasts, sample code, and documentation, we've published in a given 12-month period. The compilation provides you with convenient access to the "best" of OTN as well as an insight into the interests of the Oracle developer and DBA communities.
Greatest Hits - 2006 Edition ZIP (119MB)
Greatest Hits - 2006 Edition ISO (190MB)

Free Oracle Tutorial Downloads

A lot of interesting tutorials:
Oracle
Others

Oracle Database Patch Sets

Here you have a nice link to latest patch sets against platforms including release dates.

*You must have a MetaLink account to download patch sets.

Ultimate List of Free Windows Software from Microsoft

Microsoft has over 150 FREE Windows Programs available for download -- but finding them all is extremely difficult. Until NOW

Helpful Ruby on Rails tutorials.

Top 30 Ruby on Rails Tutorials from eConsultant

20 ways to Secure your Apache Configuration

Here are 20 things you can do to make your apache configuration more secure.

Oracle DB feature matrix

If you are interested in the features and options of the different editions of the Oracle database(XE,STD,EE) - this document contain a handy matrix.

Ruby on Rails on Oracle XE

As you may have noticed, Oracle recently published an article about Ruby on Rails on Oracle. This articles introduces the Ruby on Rails framework and explains how to use it to access an Oracle database (Oracle Database 10g Express Edition (XE), to be precise).
If you are not familiar with Ruby on Rails, it is important to note that it has nothing to do with Java; it is a Ruby-based framework. Ruby on Rails is really interesting, powerful.
If you have nothing to do :) - check this 3 links:
Ruby on Rails on Oracle: A Simple Tutorial
Grails on Oracle for Java Developers
HR Schema on Rails