What is Cloud Computing:
Cloud computing provides a way to develop applications in a virtual environment, where computing capacity, bandwidth, storage, security and reliability aren't issues—you don't need to install the software on your own system. In a virtual computing environment, you can develop, deploy, and manage applications, paying only for the time and capacity you use, while scaling up or down to accommodate changing needs or business requirements.
IBM has partnered with Amazon Web Services to give you access to IBM software products in the Amazon Elastic Compute Cloud (EC2) virtual
environment. Our software offerings on EC2 include:
Back to basics: The difference between SaaS and Cloud Computing
http://www.itworld.com/software/109287/saas-and-cloud-whats-difference
External Links
1. http://www.ibm.com/developerworks/linux/library/l-cpan-net-amazon-s3/index.html
3. http://www.ibm.com/developerworks/linux/library/l-amazon-perl-1/index.html
4. http://www.ibm.com/developerworks/linux/library/l-perl-twitter/index.html