Adobe TV

http://tv.adobe.com/

Adobe have video tutorials on all their many products including Dreamweaver CS5.5. The tutorials range from basic to advanced, however the My Library feature works very poorly as does the idea of channels.

Allway Sync Logo

Allway Sync

http://allwaysync.com/

This is one of the best free tools for ensuring that you can keep two or more copies of your files in sync easily. 

DebugBar IE Tester

http://www.my-debugbar.com/wiki/IETester/HomePage DebugBar offers features to aid debugging web pages in Internet Explorer similar to Firebug. The site also offers a free Tester which can show you how your web pages will look in versions of IE from 5.5 to 10.0 

DropBox

https://www.dropbox.com/ 

DropBox is a free facility that enables you access to your files and shared files over the Internet. Download and install it at home, and the files will be automatically kept in sync. Your files can be shared to selected people

Firebug

http://getfirebug.com/whatisfirebug

An essential tool that assists in debugging web pages particularly if they include JavaScript.

Learnable

https://learnable.com/

Learnable is an offshoot of Sitepoint and has a wide range of online courses, including courses on HTML5, CSS3, JavaScript, Web Design, Web Mobile, PHP and WordPress. They cost $17/month for any two courses.

Sass

http://sass-lang.com/tutorial.html

Sass is a meta-language on top of CSS that’s used to describe the style of a document cleanly and structurally, with more power than flat CSS allows. Sass both provides a simpler, more elegant syntax for CSS and implements various features that are useful for creating manageable stylesheets.

Sitepoint

http://www.sitepoint.com

A good reference site for articles, forums, resources and books on HTML, CSS, JavaScript PHP and jQuery

Software4Students

http://www.software4students.co.uk/

The cheapest place to purchase Dreamweaver when used for educational purposes.

w3schools

http://www.w3schools.com/ A good source of reference for all the HTML tags, and CSS. Not however kept up to data in terms of HTML5 and browser compatibility. 

WestCiv

http://westciv.com/tools/

Some useful tools in particular the CSS Sandbox, together with other resources on CSS