Where to read real examples of moving to the cloud?

Question

Cloud computing

Where to read real examples of transferring the physical infrastructure of a company (no matter how big or small) to the cloud? Interested not "manual" on moving, namely an example.
Like - there was a network on that and that, such and such servers, etc. - they replaced it all with this and that, they didn’t change something, the profit was such and such, maintenance work increased / decreased, and everything like that.
Thank you.

Answer 1

There was a local exchange. Licenses, cluster, servers, screws, backups.
Moved to google mail.
For many users, the same outlook remained, web outlook was replaced by web-google-mail.
Minus licenses, minus local servers, minus headaches and administration. Just a subscription fee for corporate mail in Google.
Many have stopped using outlook altogether. Less office and licenses.
Linuxoids didn't really notice anything.
Company of about 1500 people.

Answer 2

My clients are small companies. Someone initially started working in the cloud, someone was transferred. Our scenario for working with the cloud is working with 1C. For small companies, in this case, there is a certain benefit. There are no costs for licenses, equipment, payroll of specialists. In general, the flight is normal.