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Following are a collection of websites that give you options related to your Popular CMS:

WordPress Hosting (specialised) 

WP Engine – WordPress Hosting and Managed WordPress Hosting – http://wpengine.com/   
Flywheel – a premium WordPress hosting company built specifically for designers, freelancers and creative agencies – http://getflywheel.com/   
Managed WordPress Hosting by Pagely – https://pagely.com/   
WordPress.com VIP – Enterprise WordPress Hosting, cloud hosting, support, training, and other services for brands, publishers, and enterprises – http://vip.wordpress.com/   

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WordPress Hosting (general) 

Exclusive and Cheap WordPress Hosting – Bluehost – http://www.bluehost.com/wordpress       
Premium WordPress Hosting by Media Temple – http://mediatemple.net/webhosting/wordpress/       
WordPress Hosting – Host Your WordPress Blog/Website/CMS with HostGator – http://www.hostgator.com/       
WordPress Hosting: Host Unlimited/Multiple WordPress Sites with Rackspace – http://www.rackspace.com/cloud/sites/web-hosting/wordpress/       
GoDaddy managed WordPress hosting at an affordable price, as well as easy installation of your WordPress domain – http://in.godaddy.com/hosting/wordpress-hosting.aspx       
Optimized WordPress web hosting by DreamHost – http://www.dreamhost.com/partners/wordpress/       
Host your WordPress Blog with Ease | BigRock – http://www.bigrock.in/web-hosting/wordpress-hosting.php       
WP Hosting Services by InMotion Hosting – http://www.inmotionhosting.com/wpbeginner       
WordPress Host -  http://www.webhostinghub.com/wpbeginner-wordpress.html       
WordPress hosting from Site5 – https://www.site5.com/p/wordpress/       
RapidPress is WordPress hosting powered by Name.com – https://www.name.com/best-wordpress-hosting       

WordPress Developers 

 
WordPress support – http://wpcurve.com/   
Fix WordPress Issues – http://wpfixit.com/   

WordPress Discussion Sites

WPBeginner resource site for WordPress tutorials – http://www.wpbeginner.com/

WordPress theme sites

  
WordPress themes and professional WordPress templates on ThemeForest – http://themeforest.net/category/wordpress   
Themify – Drag and Drop WordPress Themes – http://themify.me/   
Responsive wordpress themes – http://www.templatemonster.com/wordpress-themes.php   
WordPress Themes Reviews by WpThemesChecker – http://www.wpthemeschecker.com/   
Elegant WP Themes – http://www.elegantthemes.com/   
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