The ebooks you create will be particularly useful for targeting "early adopters", i.e. those that want to be on the cutting-edge when it comes to new technology/software.
With this approach, you know that those that do download your ebooks are interested in hearing from you. The ebooks you create will be particularly useful for targeting "early adopters", i.e. those that want to be on the cutting-edge when it comes to new technology/software.