I'm revisiting this topic in light of a lively discussion during which a fellow career expert had the audacity to actually disagree with me. Envision an e-mail smiley face here.
My standard thank you note advice is two-fold. First, keep it short and simple. Second, send it via e-mail within hours of the interview. Click here for the 2009 column that I so confidently thought would put all best practices questions on thank you notes to rest.