Themes 21 - Themes21 provide 90 + responsive best free WordPress themes & templates. We have more than 100s of templates of WordPress with slider demo content for free.
Theme Forest - The #1 marketplace for premium website templates, including themes for WordPress, Magento, Drupal, Joomla, and more. Create a website, fast.
Themeshaker - It's a web application and filtering tool to find WordPress themes quickly and easily.
ThemeFuse - ThemeFuse is a store that provides high-quality designed WordPress themes to let you stand apart from the crowd.
Joomlart.com - Best of the Joomla templates since 2005. Offering responsive free Joomla templates & premium Joomla templates, RTL layouts for Joomla 3. 300K+ happy members
ThemeGrill - ThemeGrill is an online marketplace that develops and sells WordPress themes and plugins that you can buy to create professional websites for businesses, magazines, and blogs.