presumably, you're out of luck. I don't think this particular monetizing model is very viable these days, except for really high-quality content/websites, which probably have better deals already, anyway.
How does one charge for consuming content on the internet? We think that consumers can potentially see the goods(in this case the summary) before acquiring or buying it whole.
The high quality sites pretty much run on trust, the other long tail of sites that want to monetize have to cram in ads. Time to change that?