This is an example of a site with a large DB (~ 10 M galleries here)
We still have categories just to prove the script can handle it
We have search box at the top of each page
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BDSM, Bondage, Domination, Humilation, Anal, Rough Sex, Dildo, Fisting, Hardcore, All Sex.Master Otto, in his infinite wisdom, decides he must teach slave a most valuable life