This morning, I received an email from a reader I hadn’t heard from for a year. How do I know? Not due to my enclopeadic brain (my brain is anything but), but because the moment the email dropped into my inbox it came up with a brief history of my correspondence with him.

As it happens, that’s just two emails – but it’s enough to prompt me to look at the previous emails and give them a quick read.

This is great for me, but for a company that thrives on customer relationships it’s surely invaluable.