Additional features for Dreamweaver, some free, some pay.
I have purchased and used components from the following:
General Reading and Resources
More on CSS http://www.csszengarden.com/
Jakob Nielsen – Alertbox newsletter – http://www.useit.com/
Web pages that suck – look for checklists and the Daily Sucker – http://webpagesthatsuck.com/
http://tv.adobe.com/ – Choose Dreamweaver from the Products menu
http://labs.adobe.com/technologies/dreamweaver/ – Adobe Labs
Discussion forums – a good resource for tricky Questions – http://forums.adobe.com/community/dreamweaver
Since the end of the Boagworld podcast http://boagworld.com/ I will research add some web design podcasts to this page.
Technical Standards and Accessibility
W3C – http://www.w3.org/
Color Blindness – test your site: http://colorfilter.wickline.org/