Big names in the retail industry are jumping on the geolocation bandwagon, especially for the busiest shopping weekend of the year.

For example, Sports Authority is offering $25 cash cards for customers that check-in with Foursquare and spend $100 or more, JC Penney will donate $25 (up to $100,000) to the Salvation Army for every Foursquare…

[[ This is a content summary only. Visit my website for full links, other content, and more! ]]