It will use most of the money to fund the completion of its temporary drilling programme, planning applications and feasibility studies for the project, called York Potash.

BBC: Company puts ?54m into North Yorkshire potash scheme

Young people, teens in particular, are drifting away from Facebook for less overwhelming social applications such as the 140-character Twitter and the intentionally temporary photo service Snapchat.

CNN: The joke may be on Zuckerberg