Please reply accordingly to what I wrote ...
From my side I've to prepare 4 dedicated servers (one for mysql, one for cache of mysql, one for images and one for domains) to start ...
After start recovering millions of thumbs per day in one database with n millions of records where each record has an average of 20 thumbs ,etc ...
Prepare one client api like this one for example
absolutelyporn.com is no big deal ...
These 3 webmasters after will prepare the entrance for the rest of webmasters ...
Step by step and with sense ...