ALA 261: CSS layout redux; in praise of prototyping | Zeldman on Web & Interaction Design
CSS layout is awesome, except when your layout calls for a header, a footer, and columns in between. "Faux Absolute Positioning" combines the strengths (and removes the weaknesses) of absolute positioning and float-based layouts. Plus: the rise of Ajax and rich internet applications has thrown the limitations of traditional wireframing into painful relief. "Sketching in Code: the Magic of Prototyping" can help you focus on what you're building and convey its impact and "magic" to that all-important stakeholder.