POSTING on social media sites usually involves sharing only the best highlights of daily life.

But users of Pencourage are encouraged to blog about "every aspect of their life, as it really is".

The site allows subscribers to post 200-word diary entries about any aspect of their lives, along with pictures, songs or videos that are relevant to their story. They can invite others to give advice on what to do or how to cope with their situation.

The crucial aspect of the site is that it promises never to reveal the personal details of the user to anyone else on the site, allowing them to confess all anonymously and share stories ranging from battles with addiction and marital strife without anyone discovering their true identity.

In contrast to the happy, uplifting messages often shared on sites like Facebook, Pencourage users share wisdom such as "I'm 40 now and do you know what the best thing about being 40 is? There is nothing good about it".

A recent poll carried out by Pencourage found that two-thirds of social media users distort the truth when posting online - ranging from small lies about what they have been doing to making up relationships and holidays. One-fifth of people aged between 18 and 24 admitted their profiles bore no resemblance to the reality of their lives.