Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Heroku - Agile deployment platform for Ruby, Node.js, Clojure, Java, Python, and Scala. Setup takes only minutes and deploys are instant through git. Leave tedious server maintenance to Heroku and focus on your code.
Pipedream - Integration platform for developers
Salesforce Platform - Salesforce Platform is a comprehensive PaaS solution that paves the way for the developers to test, build, and mitigate the issues in the cloud application before the final deployment.
Parabola - Automate manual processes without spreadsheets or code