Public Clouds

KT's cloud offering (ucloud service) includes CloudStack based compute, Openstack Swift based object storage, KT CDN and other cloud capabilities based from KT's data centers in South Korea.

Cloudant offers fully managed and hosted CouchDB hostings. To do so, they have forked the open source CouchDB project and created BigCouch, which while backwords compatible with CouchDB requests, supports more advanced clustering capabilities.

Heroku is a platform for deploying Ruby/Rails applications that launched in 2007. It runs on top of Amazon's EC2, but this is fully abstracted from users. Heroku offers both shared and dedicated deployment options and very flexible usage-based pricing.

AppHarbor markets itself as "Azure done right". They support .NET deployments using a simple GIT push.

AppFog provides a simple PaaS for Java, Python, Node, .Net, Ruby, PHP, MySQL, Mongo, PostgreSQL, and more. The AppFog PaaS also supports multi-cloud deployment options including AWS (multiple regions), HP and Rackspace Cloud.

Microsoft is a late arrival to the cloud market, but is now dedicating significant resources to their Azure cloud services. Azure offers a .NET Platform, Storage, CDN, SQL Server Database and Messaging services, all available with on-demand pricing.

Google offers an assortment of cloud services including the AppEngine Platform and the Google Storage service. Google is very innovative and aggressive in this market and offers generous free usage allocations for these services and paid upgrade options.

Salesforce offers cloud services: Force.com lets users define and manage databases, forms, etc. using a browser GUI. Database.com is a cloud based relational database - basically Force.com without a GUI and more flexible and affordable API usage options.

WebAppCabaret is a Load Balanced platform for deploying JAVA, GRAILS, Ruby/Rails, PHP, Python/Django, and CFML applications. It runs on top infrastructures of GoGrid, Softlayer, and others. Users are able to simply drag-and-drop applications to the Cloud.

AWS is the guerilla in the room in terms of cloud computing. It was initially created to enable better management of their own infrastructure. AWS offers Servers (EC2), Storage (S3), CDN (CloudFront), Databases (SimpleDB & RDS) and many advanced features.

Dotcloud provides many pre-assembled technology stacks deployed to EC2 including Rails, PHP, PostgreSQL, node.js, Cassandra and many more. The dotcloud CLI allows users to deploy and manage stacks without worrying about complex configurations.

Stackable provides pre-built web stacks for PHP, django, MySQL and VPS's. Stackable takes care of many of the administrative tasks involved with setting up, configuring and managing web stacks. You simply upload your application files and everything works

Cloudways Ltd. is a European managed services provider (MSP) that provides on-demand app deployment (PaaS) & cloud hosting solutions on self-service, as well as fully-managed IaaS.

cloudControl provides a pay-as-you-go platform-as-a-service for PHP applications. They include standard PHP capabilities as well as many add-ons such as MySQL, memcached, cron, MongoDB and more.

Cloud Foundry is a platform-as-a-service for building, deploying, and running cloud apps using Spring for Java developers, Rails and Sinatra for Ruby developers, Node.js and other JVM frameworks including Grails.