Collecting the web - how's that for an impossible sounding task.
It's one the National Library has set a team involved in web harvesting, collecting online material from websites to blogs and social media posts and even emails before they disappear into the cyber ether.
Steve Knight and Jessica Moran gather online material that is a record of the social, cultural, and political expression of New Zealanders but there are tricky issues like sites promoting hate and other offensive material.
They look at gathering tweets and other social media in the way the library used to collect famous people's journals and letters.