I have few sites with affiliate program reviews, getting about 400 daily visitors and I put there "popup/interstitial" with some clickbank products... but it looks like it is not selling much. Any ideas how to improve it or is there some more related product? I need to generate some other sales because I am CDR status over one year and having over 500USD in clickbank waiting to be sent. Here is the code: www.webmaster-money.org
If you aren't doing this already I would focus on building a list. Start by giving something away (eBooks, Tools etc) and find out what triggers your users to enter their email. Setup a good email funnel and provide them with a quality product once or twice a month. The money is in the list my friend and your website is a great fit for it.
Your website looks like a buy buy site, which will irritate visitors so try adding some real content and get traffic from search engines they convert really well. Make the website reader friendly remove all those unnecessary distractions.
I highly recommend you to visit cbengine.com . It is a Search Engine for ClickBank Products, and you could choose categorically, some top products.