Wikis allow people to collaborate on text based documents, share media and documents and comment on each other's work. Once saved a new version is created, so you can always retrieve work if it is modified or deleted. You can also use the revision history to see who has contributed what.
The UCL Wiki allows you to add what are known as widgets to your page to show various information dynamically:
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Thank you to our current UCL E-Learning Wiki contributors:
Jessica Gramp (Unlicensed), Mira Vogel (Unlicensed), Natasa Perovic (Unlicensed), domi.sinclair, Karen Shackleford-Cesare (Unlicensed), Javiera (Unlicensed), Leo Havemann (Unlicensed), Eliot Hoving, kit.logan, a.eyt-dessus, Fiona Strawbridge (Deactivated), fiona.harkin, Jason Davies (Unlicensed), Joanna Stroud, Karen Stepanyan (Unlicensed), Matthew Lever (Unlicensed), d.kaminski, dwaine.mclean, ele, J Dewitz, Martin Burrow (Unlicensed), Neumann, Tim (Unlicensed), Sean Gainford (Unlicensed), a.wilkinson, Alan (Unlicensed), b.legarra, Bowditch, Isobel (Deactivated), Caroline Norris, cceajmt, Chris Carrington, Clive Young (Unlicensed), d.larreina, Deborah Deborah (Unlicensed), Emma Whitney (Unlicensed), Fiona Harvey, Georgios Lekeas (Deactivated), Ian Calder (Unlicensed), Irina Niculescu, jane.burns, Janice Kiugu (Unlicensed), k.taka, Kate Sym (Unlicensed), Kearsy Cormier (Unlicensed), Lina Iordanaki, m.martinon-torres, m.s.smith, m.veale (Unlicensed), Matt Jenner (Unlicensed), r.el-sharouni, r.gaywood, rachna.pandya, Rebecca Payne (Unlicensed), Samantha Ahern, Steve Rowett, steven.buckingham, ucrhdaw, y.pokern, Zaman Wong