A geat resource with good books and tutorials

A great ajax framework for php. I recommend it!

A nice online tool that validates your rss

This is a nice resource, the tools used in the book are free for us others to use. Good SEO tools we can use.

This is just a have to when you are a webmaster and need to find good templates to a project. This site is just great!

A good list of different links to papers and tutorials on various security aspects and other fun stuff. A nice resource.

A good read if you deal with linux distros or even just have it installed, you get the security aspect very well explained in this guide!

Great resource when it comes to shellcodes, exploits and other important things you need when performing system penetration tests or playing shell wargames :D

Ever wondered how to make fireworks, here's a great site that shows you just that.

Stefan Essers's blog, a good read if you do a lot of php coding or php coding in general