The home page, news page, match report pages and squad pages now have "Facebook Like" buttons on.
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Facebook now has 25 million users in the UK. So this seems a very good way of getting others to help promote your club.
Update (16/09)
Once you click like you can then add a comment and share the link on your profile as shown in pics below. The "like" button is Facebook's new way of doing what used to be called "share".