http://www.facebook.com/home.php?#!/urbanoutfitters?v=info&ref=ts
Urban Outfitters uses an effective approach to social media by capturing their audiences where they are most active-on Facebook and Twitter. Urban Outfitters offers exclusive offers and promotions to fans/followers of their Facebook and Twitter websites. This has proven to be effective, as they have over 312,000 fans on their Facebook page, as well as over 57,000 followers on Twitter.
http://www.mediabistro.com/prnewser/social_networks/urban_outfitters_on_social_media_dont_commission_an_agency_to_figure_this_stuff_out_148718.asp