nopStation's Product Q&A plugin for nopCommerce lets you enable a Q&A section on your online store's product pages and set which customer roles are allowed to ask or answer questions. This plugin lets customers ask questions anonymously and lets the store admin approve or hide customer questions and answers as well.
nopStation OCarousels plugin allows to show Featured Products, Bestsellers, Recently Viewed Products and much more with the carousels of a nopCommerce site on different widget-zones.