We keep our eyes on the top technologies driving ecommerce measured by marketshare in our primary market (the US). Since its really not possible to be an expert in all ecommerce technologies, we try to make sure we are experts in the top few in order to ensure we continue to offer the best expertise to our ecommerce customers.
For August 2016 the top ecommerce technologies by US marketshare are once again WooCommerce and Magento. You can see the full list we generated from Datanyze.com.