I run a custom cataloguer.
Keeps them organized by whether it is my own licensed content or sponsor provided content. In the case of sponsor provided content also stores what sites it is good for and any aknowledgement text that the sponsor needs when it is used.
Catalogues by niche (grabs the niche out of the folder name if named that way) allows addition of other niches it falls in. Also lets me categorize by hard versus soft.
Ranames the pics to se friendly type names, again grabs the root of the name to use from the folder name or from a custom entered name.
Thumbs and resizes the content and stores it in a predefined directory structure and controls the ftp up to the sites.
Does a bunch of other things too, like storing all my various link codes by sponsor.
I started on it back in 2001 and someday I will actually be able to put a wrapper around it so oter folks can use it
It ain't pretty but it works geat.