How can I be confident that the work I create on sQuizya will still be available in 10 years time?

Sadly, you can’t be. Records, videos, reel-to-reel tapes and cassettes, floppy discs and even CD’s and DVD’s are almost gone or at least declining in use. However, consider the upside; for every hour you spend creating brilliant zApps to share with your students and the rest of the world, there will be thousands of other teachers spending an hour creating brilliant zApps to share with you. Time saved will far outweigh any possible future losses.