Free Cheat Sheets for Developers on DZone

I found today a superb resource for Cheat Sheets (also known as reference cards) on DZone.

Whenever I find a cheat sheet in a book store I need to buy it.  Looking up information on the Internet is way faster but sometimes you don’t have a connection and these short e-books can be of good help.

Here is a short list of Cheat Sheets I found on DZone:

• Essential MySQL
• Core ASP.Net
• Core CSS: Part III
• Essential Ruby
• Core Java
• PHP
• Struts
• C#
• JQuery Selectors
• Design Patterns
• Spring Configuration
• Getting Started with Eclipse

You will find on http://refcardz.dzone.com more the 50 of these sheets.