Extensions/Web Apps (easy installation)
Diigo Extension, best for power users, avaliable on Chrome(Recommended), IE, Firefox
Awesome Screenshot, available on Chrome, Firefox, Safari
Quick Note, available on Chrome
Read Later Fast, available on Chrome
Anyone who would like to access this article in pdf format may via the following web link:
http://www.researchgate.net/publication/220207532_Google_and_the_scholar_the_role_of_Google_in_scientists%27_information-seeking_behaviour/file/50463518a4c87b00f8.pdf