I have recently played about with the layout of my directory Kuoid.co.uk, and have introduced a sponsors section. The current banner of 125x125px has been a long running sponsor of my directory, and due to success of it, I have decided to allow 2-4 more sponsors (depending on popularity). Each slot will be on the sidebar, and is featured on every page of the site. At time of writing, Kuoid is a PR1 directory, and recieves approximately 5000 UV's a month. The alexa rank is 68,341 (correct at time of writing). Each slot is currently $2.50 a month, and I'm offering a 3 month purchase at $5. All payments can be made via paypal. Please PM me for more details or to take up the offer.