On the Facebook
, social networking site
a wall is a section in your profile where others can write messages to you or leave you gifts, which are icon-like small images. The wall is a public writing space so others who view your profile can see what has been written on your wall. Once you have received a wall message, you can respond directly back to the friend who left it using the “wall-to-wall” mode. There are variations of the wall available to Facebook users by installing Facebook applications, like “Super Wall”. These types of applications will offer features and options not found in the standard Facebook wall.
Also see Social Networking Sites in the Quick Reference section of Webopedia.