Cloud infrastructure related services

Access to Amazon cloud services is free for 1st year for new users. awsThis offer is available at http://aws.amazon.com/free. Use your amazon.com login if you have one already.

Business productivity and collaboration software as a service

zohoSign up for Zoho apps for your domain at https://workplace.zoho.com/orgsignup.do?plan=free

Hosted Config Management Tools

Set up a free chef server account with Chef.io using this link https://manage.chef.io/signupchef

Domain and SSL certificate providers

https://letsencrypt.org

https://www.startssl.com Using this can be a hassle since it is not automated.

http://aws.amazon.com/certificate-manager These seem to be limited for use with AWS services.