Today is national blog day. The National Trust has asked the nation to record a diary of today, a run of the mill Tuesday as if a diary entry or blog posting and send it in. The aim is to create an online archive of a day in the life of country, by which they mean the people of this country.

Historian Dan Snow wants details of "run-of-the-mill days" to create an account of how ordinary people live. A not so ordinary person who has joined the quest is Richard Charkin, boss of Macmillan.

Recent studies have shown an increase in digital creation, but a decrease in the amount of saved material, which could create a gap in our national archives and cause problems for historians in the future.