Many years ago I signed up for a hosting company and I was really impressed by the marketing technique of the owner. The owner is a good looking white blonde woman. When you signup after about ten days you get an automated email in which she introduces herself and provides a link to her personal facebook profile and invites you to add her to "get to know better".
Although I stopped using the service simply because I didn't need it but I was impressed by her marketing technique. I didn't add her on facebook because back then I didn't have a facebook account but majority of the people are very active on facebook. Suppose a man who actually clicks on the "Add Friend" button. he will most probably become a customer for ever becuase she posts new offers along with other status updates. With so many web hosting "companies" being created everyday keeping your customers is a challenge.
Because I am a guy so my facebook profile will never be as effective as the profile of that woman.
Now my question is what are some other ways you are using to keep your customers.