The schoolofeverything has gone live. It's a kind of intelligent shop window for freelance teachers to promote themselves. A sort of eBay for trainers, teachers and their students but without the money. Well, not yet anyway.

It's based on the principle that lots of people have something they can teach and lots of people want to learn stuff. Connecting them through advertising is expensive and little cards in shop windows aren't very good. Just go to shoolofeverything, tap in your subject and see who's offering it.

It's early days. I think it's officially alpha. It's free to register as a teacher. And, of course, it's free to use. There aren't a lot of teachers yet - ten in 'technology' and nine in 'mind body and spirit'. I'm guessing that the numbers will grow rapidly because it's such a simple and good idea.

The people behind it are talented and they have some decent advisors. They were finalists in a recent Seedcamp competition to find five startups for three months' coaching and a prize of $50,000. They were in the final 20 out of a field of 260.

Watch this space.