The driving force behind our TV and radio shows, our books, our columns and our online feeds is the uncovering of anything and everything interesting. Here are our top tips for doing QI research:

Read everything that you can, and don't just explore the internet. Scouring a newspaper or magazine in detail usually turns up at least two or three interesting leads. Make a note of anything interesting, and dig further into anything that sounds really intriguing.

Anna: Google Books search goes a long way. Pick a word, confine your search to pre-1900 (and choose 'Preview'), meander through the results and find out what those olden days types were writing.

Andy: When reading about a particular topic it's helpful to pause and come up with a list of questions about every aspect of the subject you've never considered yet. So, for guavas: When did guavas reach the UK? Were they always called guavas? What's their chemical make-up? Where's the biggest guava farm? Even if some of the questions are impossible to answer, you'll have crowbarred the subject open and found more ways of researching it.

Alex: If you want a break from reading, digging through film and picture archives is always fun - for example, the NASA libraryBBC Information & ArchivesBritish Pathé and and Retronaut.

Molly: I love to get out and about and meet Quite Interesting people - so I'm often to be found in a museum, chatting to a curator. They're experts in their fields and usually know everything there is to know about their subject, from fish to meteorites. You'd be surprised how often you're able to wrangle a tour behind the scenes, where the magic happens...

Steve: Keep drilling, and follow the human stories. Any number of websites will give you stuff like the length, breadth and height of the Saturn V rocket but biographies and eye-witness accounts will give you so much more.

QI Research