Is there some way that visitors could see the picture links for say one time for free in articles then have to join and pay to see them again. Or maybe a timer so the pictures are free for all in new articles for say 36 hours, then only paid members get to see them.
you have to let folks see enough, on multiple visits, to realize it is worth joining. Some sites look good until you realize people , posting questions have to wait weeks for responses. Since there is very little current activity. Some of them are not even active but just have archives online.
Bil lD.