I empathise with what you expressed but I'm not sure your solution of adding a paywal is the most adequate. I think you could just be slightly in advance. Adding a new segment in the business model of a small entity always comes with some risks. Special attention must be taken to avoid overlap with existing revenues. It is not impossible that having some new contents hidden behind a paywall will eventually impact your notoriety causing dents in conference revenues. It is also possible that many readers who will opt-in for joining the paying side would have been the same willing to join a workshop one day. It can be much easier for people working in large companies to get support for a workshop then to pay a monthly fee. Etc.. Since what you want to address is to obtain revenues from companies willing to reused your content the best would be offer them a simple way to buy a checkout what they want. It's a common business model for stock photos for example. You browse and see a picture you would like to incorporate in a business document. The price is clear, visible. Do you fit in the NC criteria of the CC license and how much it costs to be on the safe side. I imagine many of these companies have budgets for buying stuff, you just want to reduce the friction. When they do their choice they don't want to contact you and ask and wait for an answer. You know how many people shared and infringed your rights, you don't know how many just didn't contact you. IMHO there is more to gain there and you are sure you will not take a risk on you other revenues.