Understanding consumer psychology and online behavior has become essential and mainstream knowledge for e-commerce development in 2012.  While some of us might regret that the cat is out of the bag, it also means a lot of smart people are figuring out a lot of smart things.  Below are what I found to be the most insightful and actionable articles in 2012. There’s two things mostly missing: Recommender systems are still exclusively the domain of data crunching and algorithms, while I’d like to see more on inspiration and getting people out of the filter bubble. The other thing I haven’t seen much of in 2012 is any interesting work on stickiness and loyalty. If you follow my twitter feed, you’ve seen[…]