So lets say I have an email list of 50,000 people who have significant relevancy to a product or company. These are the most relevant people to have involved in a facebook group or a fan of a facebook page. If I've got an email list of people that I know respond well to my company, how do I convert them into members of a group, fans of a page, etc? Ideally, I'd have them uploaded to something where I can keep them "engaged", purchasing or at least thinking about us on a regular basis. Now what's the best way to convert the email list into people who will join a group, etc. Lets assume for a second that half of the email addresses are facebook users also... let me know your thoughts. Is group the way to go or is page? Also, one of the big benefits to having these people as a member of a group or page, aside from the ability to send them things that may convert up front, is it gives me the ability to 'remarket' to them while they're browsing facebook by specifically targeting them with CPC or CPM ads.