No need to use widgets from different services, just try Widget Pack and manage all widgets in one dashboard.
Full-featured Free plan. No obligation. No credit card required.
Add piece of code to your website and widgets instantly start work or you can use plugins for WordPress, Joomla, Drupal or Blogger.
Widget Pack can delegate the work of default comment or review system to cloud widgets makes your site faster.
Support Google microdata and Rich Snippets for comments, reviews and rating to boost your search traffic.
Fully adapted to the screen size of smartphones, tablets and works on any mobile platform.