With Facebook Gifts, you can send and receive
Facebook's limited edition virtual gifts,
small tokens of appreciation that are the perfect way to say
"Happy Birthday", "Congrats", or just "Hey, I'm thinking of you..."
New gifts are added every day. Most gifts cost $1 and are designed by
Susan Kare, the designer of the original Macintosh icons

Facebook launched Gifts on February 8, 2007,
which allows users to send virtual gifts
to their friends that appear on the recipient's profile.
Gifts cost $1.00 each to purchase,
and a personalized message can be attached to each gift.

security virus, ... ?
[@] mom/facebook virtual gifts