I've always read a lot of American food blogs, particularly baking ones. I think partly because the things they were baking were not necessarily part of the every day British baking lexicon - there were key lime pies, lemonade bars, tres leches cakes... I could go on.
What often baffled me a little about some of the blogs I read was the prevalence of using box mixes to make cakes. It must be a difference in culture because over here my impression has always been that box mixes are mostly deployed by parents to placate children who want to bake looking for an easy option. In the States, however, it seems like it is commonplace to bake from these rather than 'from scratch' and often a box of cake mix will be the starting point for a recipe that then goes on to add extra eggs, milk, butter. You know, the things that would go into a normal cake. It always seemed like an oddly lazy option to me, particularly for people who were supposed to be keen bakers. Maybe these cakes turned out to be delicious though, who knows? We don't get 'white cake box mix' here so I will never find out.