Black Marble have some lovely ideas. One of them is to use the venues (and some of the speakers) from their technical conferences to run parallel events for local sixth form students. I've been helping out with sessions for a while now, and today I got to go over to Leeds and strut my stuff for a couple of hours.
I was talking about something dear to my heart, the importance of self promotion, of keeping an eye on what you do with a view to making sure that you build and curate "the brand that is you". Two great audiences. If just a few people who were there walk out of the presentation and start blogging, or have a go at public speaking, I'll be a very happy chap.
Session 1 audience
Session 2 audience