Facebook released some studies on the value of a “liker.” There are a number of benefits, but to me this appears to be the key one:

” They are also more interested in exploring content they discover on Facebook — they click on 5.3x more links to external sites than the typical Facebook user.”

In other words, they are more likely to go to your website – which means more chances to have them join your list.

See Facebook’s suggestions: http://on.fb.me/9axsRw

Privately, Facebook executives have said that their biggest worry about  Google  is that it will prioritize its Google Profiles over Facebook Profiles and Pages in search results.

I don’t know why Google wouldn’t do that considering that search is its strength – and Google Profiles right now are nowhere. Yet it would be the biggest challenge to facebook pages or profiles if people knew their Google Profile would have priority in search.

Source: New York Times