The ups and downs of social networks
Facebook has announced that it now has 500m active users, just six years after it was launched. The site has become the poster child of social networking on the web. While some others have seen growth, MySpace, Flickr and Bebo appear to have declined in the past year, according to these figures from Nielsen. Interesting international variations are seen, both in the amount of time Facebook users spend on the site each month and in the competing networks' popularity in different countries.
If you forget to tick the box stopping a charity sharing your information, where does it go?
The Victoria Derbyshire programme interviews a man on the UK government's secretive deradicalisation programme Channel.
Jesus Aceves was born with thick hair all over his face and body. About 30 members of his family also have hypertrichosis - making them the hairiest family in human history.
Thomas van Linge is one of the amateur cartographers that are making sense of the complexities of the Syrian conflict.