#1 Overall feeling is good, but not perfect yet ;). I'm not quite sure of the symbol - the icon/logo looks gives me associations to a snake eating a power-outet (sorry).
If using letters, like the "E", perhaps would it be possible to do something using the "M" as they have similar shapes? I prefer a nice abstract symbol before clearly readable letters, so be creative. And it is absolutely okay to skip the letters in the symbol all together.
I like the roundness / sweeping lines of the intense green "snake" much more than the "striped E". Not particularly fond of mixing the two styles as in this example. I like the clean stile of the text logo, but perhaps it needs a bit more contrast to it so that it "stand out" a bit more. Nice that you re-used the green background color as suggested on the web page - makes it easier to see how it actually would look in context, on the page! Keep up the good work!
The book incorporated with the E is smart, but I didn't understand it just by looking at the logo. And the company is super-digital so I think that a book would give the right association.