What services are available via Oracle Cloud?

Question

Oracle Cloud includes a rich portfolio of Application, Platform, and Social:
Application Services
Cloud Application Services provides customers access to the industry's broadest range of enterprise Oracle applications available in the cloud today, with built-in business intelligence, social and mobile capabilities. Easy to setup, configure, extend, use and administer, application services will include:
ERP Services: A complete set of Financial Accounting, Project Management, Procurement, Sourcing, and Governance, Risk & Compliance solutions.
HCM Services: A complete Human Capital Management solution including Global HR, Workforce Lifecycle Management, Compensation, Benefits, Payroll and other solutions.
Talent Management Services: A complete Talent Management solution including Recruiting, Sourcing, Performance Management, and Learning.
Sales and Marketing Services: A complete Sales and Marketing solution including Sales Planning, Territory Management, Leads & Opportunity Management, and Forecasting.
Customer Service and Support Services: A complete Customer Service solution including Web Self-Service, Contact Centers, Knowledge Management, Chat, and e-mail Management.
  Platform Services
As part of Platform Services, Oracle offers a complete and comprehensive set cloud services that allow developers to build rich applications and business users to harness the platform. Specifically for developers, platform services will include:
Database Services to manage data and build database applications
Java Services to develop, deploy and manage Java EE applications
Web Scripting Services to build Web applications rapidly
Mobile Services to allow developers to build cross-platform native and HTML5 mobile applications for leading smartphones and tablets.
  For business users, the services include: 
Documents Services to allow project teams to collaborate and share documents through online workspaces and portals.
Sites Services to allow business users to develop and maintain visually engaging .com sites.
Analytics Services to allow business users to quickly build and share analytic dashboards and reports through the Cloud.
  Social Services
Oracle Cloud Social Services provides the most broad and complete enterprise social platform available in the cloud today. With Oracle Cloud Social Services, enterprises can engage with their customers on a range of social media properties in a comprehensive and meaningful fashion including social marketing, commerce, service and listening. The platform also provides enterprises with a rich social networking solution for their employees to collaborate effectively inside the enterprise. Oracle's integrated social platform will include:
Oracle Social Network to enable secure enterprise collaboration and purposeful social networking for business.
Oracle Social Data Services to aggregate data from social networks and enterprise data sources to enrich business applications.
Oracle Social Marketing and Engagement Services to enable marketers to centrally create, publish, moderate, manage, measure and report on their social marketing campaigns.
Oracle Social Intelligence Services to enable marketers to analyze social media interactions and to enable customer service and sales teams to engage with customers and prospects effectively.

Answer 1

Depends on what you mean as "available".
/etc/system doesn't really have such information. /etc/services is like /etc/hosts. It forms a mapping, but has not inormation about the availability of the contents. Further, services don't have to be listed there anyway.
You could use 'netstat -a' to see what ports are listening/busy.
Darren