Facebook has very kindly provided web developers with a simple code to insert into any page, which will allow anyone logged into facebook to 'like' a page.

Instructions are here:

http://developers.facebook.com/docs/reference/plugins/like

So if you "like" this - please click the "like" icon above. Go on It won't help put food on the table, but it will help to demonstrate the usefulness of this piece of technology.