If you were writing a technology centric eBook, would you publish it free online and sell a digital eBook (PDF/ePUB/etc.) and Print on Demand version, or just have it for sell with a free sample chapter like most traditional publishers? I'm noticing many online eBooks that are available fully free online but with for pay extras, http://railstutorial.org being a good example. The free content would obviously be a great way for people to discover your writing, but also lowers the likelihood of them paying. Then again, a for-pay eBook that no one knows of won't get sold either. Most of all, there's no reason we need to stick with only the most traditional sales methods with eBooks.
What's your feelings about each method, and which would you choose? I've almost decided what I want to do, but would be interested to see the general thoughts on both models
Note: This is a repost of http://news.ycombinator.com/item?id=2042898, as the original post didn't get any response.
A few years later, we offered a free version in HTML online. Sales of the PDF plummeted. That was fine with us - we'd already pulled in ~$500k on the PDF. At that point we just wanted to spread the Getting Real word as far and wide as we can. The free HTML version helped do that.
But the lesson is: If it's pay only, people will buy it. If it's pay and free, you'll lose a ton of potential buyers. Id start with pay only (starting at $19) and then phase in a free version down the road once you're happy with the money you've already made.