John Lovett, watercolour artist teaches you the basics of creating great pictures. Useful info about the elements of art and the principles of design.
How-to Geek has loads of useful stuff for users of Firefox, Windows Vista, Linux etc. Well worth a look to find out how to tweak your computer settings and generally work more efficiently.
Aristotle’s Rhetoric. Downloadable etext. Quintilian texts elsewhere on same website.
Paleontology. This has already helped me to answer a question on BBC quiz, University Challenge. How cool is that?
A recent story on BBC news highlighted the number of fake pound coins circulating in the UK. Use these links to find out if your own coins are the genuine article.
TV Tropes — plot devices, stock characters, ensemble casts, and loads of analysis on how all your favourite telly programmes and films are constructed.
figarospeech.com: figures of speech and the art of rhetoric, all illustrated with lots of examples from today’s politics and the media. Sections on how figures of speech are used by president Bush, Homer Simpson, and the Monty Python team. Brilliant!
…and half a dozen of the other