Yes it is worse than that, the small biz owner can have the plug pulled on him at any time. Even if he is paying for the advertising - e.g. adwords ban!
What she should do now is get as many email addresses as possible from her existing customers and likers of her page, and have an e-zine or followup. This could be in conjunction with a blog. All stuff that is in her control and cannot so easily be pulled away.
Yeah, some people do. I ignore a lot of them but I always read through the newsletter from my tea store. It's like tea porn and even though I order infrequently I like seeing the pictures.
What she should do now is get as many email addresses as possible from her existing customers and likers of her page, and have an e-zine or followup. This could be in conjunction with a blog. All stuff that is in her control and cannot so easily be pulled away.