1. Amazon EBS https://aws.amazon.com/ebs/. Amazon EBS https://aws.amazon.com/ebs/.
2. Amazon Web Services http://aws.amazon.com/. Amazon Web Services http://aws.amazon.com/.
3. Google Cloud Platform https://cloud.google.com/. Google Cloud Platform https://cloud.google.com/.
4. JGraphT http://jgrapht.org/. JGraphT http://jgrapht.org/.
5. Microsoft Azure Services http://www.microsoft.com/azure/. Microsoft Azure Services http://www.microsoft.com/azure/.