European Cookie Law
Cookies are very small files that are stored on your computer and placed there by the websites your visit.
A very good information site about what cookies are and their use can be found at www.allaboutcookies.org
The aim of this new law is positive in that it wants to make sure that a website seeking to collect information about its visitors must ask for their permission first, but unfortunately the resulting impact of its full implementation could have a detrimental effect on many websites.
A very good guide on this subject has been published by wired.co.uk at http://www.wired.co.uk/news/archive/2012-05/02/cookies-made-simple and, if you are a site owner, we recommend that you read it.
Other relevant links:
Information Commissioner’s Office's guide to the cookie law