Front-end
JavaScript (Ajax, DOM), XHTML, HTML5, CSS2, CSS3, JSON, Flash, XML, Chrome Extensions, Prototype, Less.js, jQuery, Modernizr, YUI, HTML5 Boilerplate, Twitter Bootstrap.
Server-side
ASP Classic, SQL Server (Stored procedures, SQL Server Integration Services), MySQL, IIS, ASP.net, Active Directory Integration.
Other
Photoshop CS4, Hand-coding, Pixel-perfect development, Clean markup.