[UPHPU] Photo cataloging/tagging software

[D. Turnbull]

Hello all,

I've just started work at a human-resources nonprofit, and we have a a
large number of photographs that are largely unorganized. Can anyone
recommend any photo cataloging/tagging software? Our needs are as
follows:

* Multiple tags per photo with ability to search tags
* Build photo database by scanning directory structure; add photos by
saving to directory structure (instead of requiring upload via web
form)
* Multiple users accounts, with system tracking user changes
* GUI administration
* Thumbnail/gallery display for albums

I'm currently experimenting with Gallery, but I'd like to know if any
of you have recommendations.

Regards,

Dave