Simple Made Easy by Rich Hickey.
Rich Hickey is one of the most thoughful people I know and his talks are full of wisdom any programmer can appreciate.

LINQ-to-SQL: the multi-tier story story by Steven Sanderson.
This is a great post on how to manage lifecycle of your Linq-to-SQL DataContext in the layered architecture using Unit of Work pattern and HttpContext.Current.Items -

Truly Understanding Viewstate by Dave Reed - a must read for any Web Forms developer

A must watch: Single Page Application Presentations by Steven Sanderson

Selective Unit Testing – Costs and Benefits by Steven Sanderson