Would you check in to a box of Tampax like you’d check in to a bar on Foursquare? How about a jar of Miracle Whip? P&G, Kraft and a Silicon Valley startup are betting you will, well, at least for charity.

CauseWorld is a mash-up of location-based game apps such as Foursquare, GoWalla or Loopt with cause marketing, and has added checking into actual products in retail stores as the newest way for consumers to use mobile-check-in services to earn money for charity.

This seems like a very cool/engaging/topical idea for CPG marketers to get customers looking for their brands in-store. Will be interesting to see how this concept does in the coming months.

Read the full AdAge story here.

David Stutts | E-mail | Twitter | Blog | SlideShare | LinkedIn