Exception Cost: When to throw and when not to

From Rico Mariani's Performance Tidbits:
http://weblogs.asp.net/ricom/archive/2003/12/19/44697.aspx

Code as Design

3 essays by Jack W. Reeves offer three perspectives on a single theme, namely that programming is fundamentally a design activity and that the only final and true representation of "the design" is the source code itself.
http://www.developerdotstar.com/mag/articles/reeves_design_main.html