This is from a post by Mashable:
Black Friday is upon us and that means that retailers are scrambling to offer the best door-busting (or mouse-busting) specials and promotions to entice eager holiday shoppers.
Thanks to the success of Cyber Monday, retailers and online shops have long embraced the web as a place to promote and showcase deals and specials. What’s unique this Black Friday, however, is the large number of specials and promotions offered by retailers to customers who use location-based apps and services.
Users of social networks like Foursquare and Facebook Places can get discounts or get entered into special contests just by checking in to their Black Friday shopping destinations. Other services like Yelp, SCVNGR and Gowalla are also offering special promotions.
Some retailers, like Sears, are even running deal-voting specials on their Facebook fan pages. Plus, many retailers are using Facebook and Twitter to promote their early-bird specials in advance of the big shopping day.
We’ve scoured the web and rounded up 10 specials and promotions offered exclusively through social media. Know of a promo or special we missed? CLICK HERE to see all the promos