I doubt that there is one type that does it much more than others. More along the lines of various types doing so for various reasons. Initially, I was going to say any e5 OR e6, for every 5 and 6 I've ever known was a total google junkie long before everyone became as connected as we are now. These were the kids who begged mom and dad for computers in the early 90's, when while it wasn't unheard of to have them, it was uncommon. The motivations, knowledge gathering and skepticism/trust (an authority on information). Introverts will probably google more than extroverts, being more comfortable in the land of ideas. 7's are probably up there as well. So, I'm going to say any type who's core motivation is in the head triad.
Also, I can absolutely see the ADD/ADHD connection. Kind of wonder if we wouldn't find that with much greater frequency in head-triad as well.
Man suffers only because he takes seriously what the gods made for fun - Watts