An Ad Swapper™ site’s Ad Swapper™ ad images are usually stored/hosted on the Ad Swapper™ site itself.
However, you can store the ad images on some external site (a Content Delivery Network, for example). See below, for the pros and cons of doing this.
Either way, you have to upload the ad images to wherever they’re to be stored/hosted. Some typical ways to do this are discussed below.
WordPress Media Library
For most sites, the simplest way to get ad images online, is simply to upload them to the site’s Media Library.
Click Media → Add New (from your site’s WordPress back-end), to do this.
Once an image has been uploaded, click it (from the Media Library screen), and then copy the contents of the URL field (at the top right corner of the Attachment Details popup), to the Image URL field of the ad’s Outgoing Ad record.
FTP or cPanel (Etc) File Manager
You can store the ad images wherever you like on your site – by uploading them with FTP – or your cPanel (or Plesk or whatever) File Manager.
We won’t elaborate any more on this. Since, if the terms FTP and/or cPanel (or Plesk or whatever) File Manager mean anything to you, then you presumably know how to use these tools.
Obviously of course, the Image URL of each uploaded ad image (for the ad’s “Outgoing Ads” record), is the URL of wherever you stored the ad image.
Storing Your Ad Images On An External Site
A side-effect of advertising with Ad Swapper™, is that it helps boost your site’s Page Rank (and thus, moves the site closer to the top of Google Page One).
This is because Ad Swapper™ creates two link back to your site, for every ad displayed (one link for the image, and the other for the URL that clicking the image takes the user to).
Ad Swapper™ itself, doesn’t care where your ads are stored (on the site being advertised, or somewhere else). But obviously, if you store/host your ad images somewhere other than on your site itself, then you’re typically going to have only one link back to your site (instead of two).
Presumably this ***might*** reduce the Page Rank boosting effect (though by exactly how much, we’re not sure).