Here’s an interesting idea from GetElastic (an ecommerce blog worth bookmarking, btw). It started with a case study of how TigerDirect replaces product photos on their servers to indicate when something has been sold out. GetElastic’s Linda Bustos asks,
‘what if you deliberately included sold out product photos in your emails?’
This is a much more subtle (but no less powerful) way to add urgency than using text like, "hurry! act now! buy now!" That kind of text is typically not appreciated by spam filters. Or humans. I like the way you think, Linda.
Not convinced? I like the way you think, too. A/B test your content, then.