European Cookie Law
Cookies are very small files that are stored on your computer and placed there by the websites your visit.
A good information site about what cookies are and their use can be found at http://www.whatarecookies.com/
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