Hi Karl, just taken a quick look over your ad copy product site and I think you have a great idea going on there.
As you may well have seen from my recent ramblings, I think the ark of professional ad copy writing is being lost to many recruiters who have never had to advertise offline in a really competitive job sections of local or national press. Now I am showing my age!
In the days when I was running advertising selection assignments for clients, I was told to build up my "Ad Copy Success File" and keep all the different ads you created that worked and produced great candidate response. So taking this concept and developing a knowledge library for all to use is a great idea.
Pricing levels, I could not tell you if the price points you have chosen would work for all international markets, I am sure you have done your research! I do think there are other revenue models you could think about, along side mutually beneficial technology channel relationships. I will expand on this if you want to contact me privately.
I hope you value the feedback Karl and my best wishes in your business venture Martin