There is a facility for hosts not liste don our site to add a coupon. On http://www.webhostingjury.com/coupon_add.php it says "HostName" then has adropdown menu of existing hosts and next to that it says "OR" and there is a text field.
You can type your host's name into there and submit the coupon as usual.
Thanks to everyone who has submitted a coupon. All new coupons will go live on the site in the next 2-3 days.