Notebook software is the topic for Session 7 of the Year of Productivity programme. I'm a big fan of Evernote and use it constantly for so many things: rough notes, more detailed notes, conference notes, Christmas card and present lists, recipes, clipped web pages, lists... I wouldn't want to be without it. I have the desktop version on my laptop and netbook, the app for my phone and use the web version at work.
I wasn't able to read the article1 as I don't have access to the relevant databases, but I looked through the abstract. I read some of the other articles and blog posts and found several useful, particularly the post about using Evernote for genealogical research. I also looked at the Secret Weapon site and found some tips. I'd never thought of using Evernote to store emails: this looks like it could be a useful way of organising them.
1 Axford, M., & Renfro, C. (2012). Noteworthy
Productivity Tools for Personal Knowledge Management. Online, 36(3), 33-36.