Great! Really professional! My doubts are solved for now.
Is there an automatic buying/bidding option for advertisers? If it isn't, it would be good and some options like slot_id[1], amount etc... is needed.
[1] Do you provide different id for different ad_slots or just one for each website?
~~MZ~~
Glad we've been able to answer some of your questions thus far!
Each advertisement features a different ID.
Each slot is provided with a unique code so you can have several advertisements on a single site with different sales methods, different costs, customers, and more.
Publishers can create as many advertisement slots for a site as they wish.