I run ads for long periods of time so I don’t care about accurate display statistics or anything of that nature.
I needed to show banner ads on my site, but double click for publishers was messing up my template and other plugins were too heavy for what I needed.
So, I made a super-basic banner plugin and named it after my favorite breakfast.
Create a banner, paste the link it should point to, name the zone you want it in, and make a note of the advertiser.
Then put the shortcode into your template or directly in a post.
If you put multiple banners into one zone then 1 will randomly be selected when the page loads.