Black Friday, the day after Thanksgiving regarded as one of the biggest shopping days of the year, may be dramatically different this year.

Organizers are planning a nationwide strike against Walmart, the largest retailer in the world, and are banking on a new strategy: online organizing.

Labor organizers are working with social action nonprofit Engage Network as well as corporate watchdog nonprofit Corporate Action Network to pull off what they are calling a "viral" -- meaning national and spreading online -- strike.

Walmart workers interested in joining the day of action are directed to this website, either to find a store near them with an organized strike or to "adopt an event" at a store near them.