Publishers offering "Header Ad" spots

A header ad is a banner at the top of a web page, usually 728x90 or 970x90 pixels, right under or inside the site's header. It is one of the first things a reader sees.

How it's sold: Publishers such as Godly, Ubuntupit and There's An AI For That sell it, normally through a simple order form or the sales team. It is booked for a month, and the advertiser pays the publisher directly.
Typical price: 187 USD per month is the median published rate, based on two rates.
What you supply: A banner image in the stated size, plus the link readers should click.
Best for: Brand awareness on sites with loyal, returning readers.
Before you buy: Some header ads show on every page and some only on the homepage, so confirm which.