I've been working in digital media since 1996 - initially for Sunbather Productions, then for Razorfish, and Deepend London. In 2000 I decided to take a sabbatical from Deepend to write a novel (Caposcripti) and since then I have been a 'company of one' - offering information architecture, production, design and coding skills to a wide variety of clients.
I regularly give talks at Industry events. Here are some links to recent talks:
App Testing for Kids and Cats - AppFusion talk.
Apps vs ePub - Creative Lunch for Penguin / Pearson.
Exploding Narratives and Digital Devices - Let's Talk Digital session for the Guardian.
On October 1st and 2nd I'll be teaching a course for the Publishing Training Centre - Developing Digital Products the User-centred Way. See also my post on What is UCD, and why should you care about it?.