Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.
Apache is a free and open-source cross-platform web server software.
Drupal Multisite enables separate, independent sites to be served from a single codebase.
Drupal is a free and open-source web content management framework.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Userlike is a cloud-based live chat solution that can be integrated with existing websites.