To get creative with your Facebook timeline there is now an automatic movie maker at Timeline Movie Maker.
If your favourite kind of pie - or pi - is the numerical kind, educational films can be found on Numberphile.
Twitter has launched a new events feature, Hashtag Pages, and partnered with Nascar (National Association for Stock Car Auto Racing) to bring tweets and photos from drivers, fans, pit crews, celebrities and the media together.
And Stiktu lets users stick things to objects in the real world, leaving invisible markers behind for others to scan and discover.
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