How about a TGP that displays a daily numbered list of 100 galleries....
But if you are visiting the site and you have HTTP_REFERER (you came to the site from another link) then it would display
1. THE TOP 5 GALLERIES ARE ONLY SHOWN TO BOOKMARKERS
click here to bookmark, then revisit the site from that bookmark.
2. THE TOP 5 GALLERIES ARE ONLY SHOWN TO BOOKMARKERS
click here to bookmark, then revisit the site from that bookmark.
3. THE TOP 5 GALLERIES ARE ONLY SHOWN TO BOOKMARKERS
click here to bookmark, then revisit the site from that bookmark.
4. THE TOP 5 GALLERIES ARE ONLY SHOWN TO BOOKMARKERS
click here to bookmark, then revisit the site from that bookmark.
5. THE TOP 5 GALLERIES ARE ONLY SHOWN TO BOOKMARKERS
click here to bookmark, then revisit the site from that bookmark.
Once you got big, you would have two classes of paid listings...
1-5 premium visitors, mostly bookmark or typed in returns.
6-15 The top ten spots non-bookmarkers would see.
There is another good way to use this idea... enjoy
But there is no unique hook (like a live chat or something) to bring them back
- maybe do both.