I got an e-mail from Pandora with some tips to make my radio station better for me. It reminded me of an e-mail I received from Mint after a lapse in visits.

These kind of e-mails are well timed and effective. I know because both prompted me to get back to the service and I’m not one to read unsolicited e-mails.

While I’m not a proponent of unsolicted e-mails in most cases, a strategically timed one may just re-engage your website visitors.