After months of wavering, I finally purchased a Kindle last week. I'm still familiarizing myself with its features. To my surprise, it doesn't have a touchscreen and is mainly controlled by a navigation button and other keys on a keyboard.…

I love Lifehacker even though I don't read every article on it. What attracted me to the website in the first place was its coverage of geeky tools, but its dub on psychology is equally interesting. An article on "cognitive fluency" caught…