Breast cancer organizations are thrilled with the free publicity that the disease, which affects over 200,000 women in the US every year, is getting on Facebook - thanks to female Facebookers posting cryptic status updates about the color of the bra they are wearing.

The recent 'trend' catching up with female Facebook users is essentially a part of an endeavor to raise awareness about breast cancer by asking them to post the color of their bra.

One of the forms of the message that is spreading like wildfire among female Facebookers goes thus: "We are playing a game for Breast Cancer Awareness. Write the color of your bra as your status -- just the color, nothing else!! Copy this and pass it on to all girls -- NO MEN!! This will be fun to see how it spreads."

With the message making rounds through the inboxes of the Facebook site, the news feeds on the social network have taken a colorful turn with words such as "Beige," "sexy black and gold," "crimson red," "turquoise," "nude with a lot of padding," and the like!

Terming the recent trend as a typical example of a grass-root movements initiating on the social networking site, a Facebook spokeswoman said that though the origin of the "color status on Facebook" is not known, it is likely that the message started in Britain and quickly spread to the US.