In recognition of World AIDS Day, December 1, Google, Twitter and Facebook have added special features and tools to educate users on HIV/AIDS and allow them to show support for those living with and affected by the epidemic, the Huffington Post reports.

Both Twitter and Facebook are working in conjunction with (RED), the multimedia and consumer advocacy campaign launched in 2006 to raise funds for the Global Fund to Fight AIDS, Tuberculosis and Malaria. Twitter has redesigned its sign-in page with a red color scheme and (RED) messaging that urges users to “turn Twitter (RED)” on World AIDS Day. Facebook's “JoinRED” campaign invites users to share videos and facts about AIDS and upload a (RED) picture to their Facebook profile.

Google has added a red AIDS ribbon to its homepage directing users to resources such as UNAIDS, the International AIDS Society, (RED), Act Against AIDS and Alicia Keys's Keep a Child Alive.

The Huffington Post's HIV/AIDS news page also includes posts by a variety of leaders and advocates, including Susan Smith Ellis, the CEO of (RED); Orin Levine, the executive director of the International Vaccine Access Center at Johns Hopkins University in Baltimore; and Jonathan Klein, the cofounder and CEO of Getty Images, who writes about the power of images in the fight against AIDS.