Well, check back tomorrow for Part 2 of the series and we can hopefully answer some of your questions.

ELN's will be more prevalent in biotech/pharma, but inertia to change for bench scientists is higher than administrators/managers that want the change. Also, managers still want to be able to grab someone's notebook and see results.
Personally, I still keep a notebook, and type up all my protocols and keep them in folders for each project. That way when the boss wants to know how a protocol works, he/she can email me and I can forward the file.