European Union law state you must ask permission for cookies. This plugin handles that for you.
Example skin - notification bar
Example skin - cookie selection panel
Example skin - preferences button
First visit shows this form. The content of the form is dependant on the configuration, the styling is done by CSS.
The INFO that is set in settings is visable, in this case, by clicking the ? . A read-more link is only shown when an URL is filled in.
When the visitor has made a choice, (s)he can change it by clicking the cookie (also highly customisable).