HTML, CSS, DOM Scripting, AJAX and various JavaScript libraries.
Classic ASP, SQL Server, PHP/MySQL with some ASP.NET of the C# flavour.
Adobe CS3 Web Premium - Dreamweaver, Photoshop, Fireworks, Contribute and some Flash (mainly demos and banners, very little ActionScript).
Semantic Mark Up, Standard Compliant Websites, Extensive Website Usability and Accessibility, Business Analysis, Information Architecture (IA), and Search Engine Optimization (SEO).