WordPress is a great content management system for blogs and portals. You could also run a fully-fledged e-commerce site on it with the right solutions. Catalog for WordPress is a clean theme that works for Jigoshop and WooCommerce powered websites. It is responsive, so it will work fine on small and large screens.
This theme is developed to work with two of the most popular e-commerce solutions for WordPress. It has a widgetized homepage and comes with shortcodes. The homepage slider makes showcasing your best products easy. You can keep a dedicated blog and add bbPress to your site. Multiple layouts are available for this theme as well.
Catalog is good looking and fairly easy to customize. If you need a theme compatible with Jigoshop or WooCommerce, Catalog is worth checking out.