I have worked on many similar projects like this but some of them are plugin developed for online documentation, blogging, storefront theme customization, Product posting on E Commerce site based on WooCommerce plugin. I have used many popular WordPress plugins like bbPress, BuddyPress, Yoast SEO, WooCommerce, WP-Ecommerce, Revolution Slider, JetPack. Also I have done customization in plugins and themes according to the requirements.