Our most popular blog of 2015 was something l wrote around this time last year about product trends on eBay and Amazon, which included the surge in popularity of vinyl and selfie sticks.

This Christmas, judging by social media, the game Pie Face, was on a lot of people’s letters to Santa and is currently the second best-seller in the games category on Amazon, just behind Cards Against Humanity.

How to Identify Trending Products
Richard Lazazzera, an ecommerce entrepreneur...