Full story
http://www.bbc.co.uk/news/uk-25430582
"Pornography filters used by major internet service providers are blocking websites offering sex education and advice on sexual health and porn addiction, the BBC has learned.
The four major internet companies have started to roll out so-called porn filters to their users.
BT launched its filter this week, Virgin has a pilot programme ahead of a full launch early in 2014, and Sky's was turned on a month ago.
TalkTalk's filter started in May 2011.
Last month, Prime Minister David Cameron welcomed "family-friendly" filters and said they were important to stop children "stumbling across hardcore legal pornography".
But BBC's Newsnight has discovered all the major ISPs that have launched full default filters are also failing to block hardcore porn-hosting sites.
All new customers will be prompted to decide whether to opt in or out, while existing customers of major ISPs will be presented with an "unavoidable choice" about whether to sign up."
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http://www.bbc.co.uk/news/uk-25430582