Reading Cybertexts - An Empirical Approach

I am currently planning an empirical study on how people actually read digital texts (plain texts in digital format, hypertexts, cybertexts). I will discuss the preconditions of such study - how the reading platform (computer screen, ebook) affects the act of reading, and what are the interpretive frameworks people employ when confronting unfamiliar cybertexts. Preliminary findings from a pilot research possibly available.