Oxford dictionaries definition. Available online at: https://en.oxforddictionaries.com/definition/cloud_computing.
 Charles R Goulding, Andressa Bonafe, and Charles G Goulding, The R&D Tax Aspects of Cloud Computing, RDTS Publishing, July 2014. Available online at: http://www.rdtaxsavers.com/PublishedArticles.
 Gartner, IT Glossary - Software as a Service. Available online at: http://www.gartner.com/it-glossary/software-as-a-service-saas/.
 Salesforce, Power Your Business with the Best of the Web. Available online at: https://www.salesforce.com/saas/.
 ICD, Worldwide Public Cloud Services Spending Forecast to Reach $195 Billion by 2020, According to IDC, 10 Aug. 10, 2016. Available online at: http://www.idc.com/getdoc.jsp?containerId=prUS41669516.
 Gartner Newsroom, Gartner Says By 2020, a Corporate "No-Cloud" Policy Will Be as Rare as a "No-Internet" Policy Is Today, June 22, 2016. Available online at: http://www.gartner.com/newsroom/id/3354117.
 Gartner Newsroom, Public cloud market to reach $246bn in 2017 with IaaS and SaaS at forefront, Feb. 22, 2017. Available online at: https://www.cloudcomputing-news.net/news/2017/feb/22/gartner-public-cloud-market-reach-246bn-2017-iaas-and-saas-forefront/.
 Better Buys, 2016 Report on the State of SaaS. Available online at: https://www.betterbuys.com/the-state-of-saas/.
 PactSafe, 5 SaaS Trends to Watch in 2017, Dec. 22, 2016. Available online at: https://www.pactsafe.com/blog/5-saas-trends-to-watch-in-2017.
 Finances Online, 2016 SaaS Industry Market Report: Key Global Trends & Growth Forecasts. Available online at: https://financesonline.com/2016-saas-industry-market-report-key-global-trends-growth-forecasts/.
 InfoWorld from IDG, From chatbots to Einstein, artificial intelligence as a service, Sep. 27, 2016. Available online at: http://www.infoworld.com/article/3124751/paas/from-chatbots-to-einstein-artificial-intelligence-as-a-service.html.
 Tech Crunch, GE Digital snags ServiceMax for $915 million, Nov. 14, 2016. Available online at: https://techcrunch.com/2016/11/14/ge-digital-snags-servicemax-for-915-million/.
 Chartmogul, The Rise of the API-based SaaS, Feb. 24, 2016. Available online at: https://blog.chartmogul.com/api-based-saas/.
 Tech Crunch, Clearbit Connect's new Gmail widget can help you find anyone's email address, April 7, 2016. Available online at: https://techcrunch.com/2016/04/07/clearbit-connects-new-gmail-widget-can-help-you-find-anyones-email-address/.
 Information Week, 10 Hot SaaS Security Startups To Watch, July 13, 2016. Available online at: http://www.informationweek.com/cloud/software-as-a-service/10-hot-saas-security-startups-to-watch/d/d-id/1326243.
 For more information, see https://www.linkedin.com/company-beta/5361201/?pathWildcard=5361201.
 For more information, see https://www.eiqnetworks.com.
 Tech Target, iPaaS - Definition. Available online at: http://searchcloudapplications.techtarget.com/definition/iPaaS-Integration-platform-as-a-service.
 SutiSoft, The Benefits of SaaS Integration Platforms (SIPs), April 7, 2014. Available online at: http://www.sutisoft.com/blog/the-benefits-of-saas-integration-platforms-sips/.
 Tech Crunch, NYC Rises As A Hub For Software-As-A-Service Startups, Aug. 27, 2015. Available online at: https://techcrunch.com/2015/08/27/nyc-rises-as-a-hub-for-software-as-a-service-startups/.
 Built in NYC, 29 SaaS companies in NYC you need to know, Feb. 15, 2016. Available online at: http://www.builtinnyc.com/blog/saas-companies-nyc-bringing-cloud-technology-businesses.
 Built in Boston, 22 Boston SaaS companies you should know, Sept. 19, 2016. Available online at: http://www.builtinboston.com/2016/09/16/software-companies-you-should-know-boston.