The "Advertise" link / button can be found at the far left Navigation panel, the very bottom of any given page.

Here is the same direct link as well:

advertise/purchase.php

1. Take a look at the banner ad pricing and see if a slot is even available.

2. You can fill out all of your information to include your Banner.

3. You choose - a one time paypal payment or a subscription.

4. Click "Checkout" and purchase the ad space.

5. Dart Den Admins will then be notified via email and can approve your Banner Advertisement.

Dart Den.com advertising is not a "per click" method. It is an "impression" based web adveristment and as such, your banner will rotate and be seen by all viewers who can then click on your banner and go to your website.