The historic events of 1989/1990 marked a turning point in European history, as 2015 may well prove to be. It is important to document such crucial phases in our history, and to start doing so as early as possible. Crowdsourcing can play a useful role here by helping to gather information through the collection and documentation of personal accounts and source materials.
There is a genuine case to be made that, in the digital age, 'User Generated Content' (UGC) is 'new history'. Its beauty is twofold: much of it has never been shared outside of a family or personal context, and now, being seen publicly for the first time, it can be marshalled into categories and mined for research.