OpenCalais.com will generate tags for stuff - but maybe not like you want.

Have you looked at KnowledgeTree?  http://www.knowledgetree.org/Main_Page

I think the Gnome Tracker is meant to do the organizing, just without all that nice comfortable hierarchy.  http://projects.gnome.org/tracker/

On Wed, Sep 22, 2010 at 11:24 AM, Tom Ostlund <tom@ostlundgroup.com> wrote:
Hello All,

I want a document manager application to replace Mariner's Paperless software for mac. It is the only piece of software that I have not found a replacement for.

The program adds meta tags to pdf files for organizing into categories. It also constructs the entire chronological directory tree in YYYY MM DD format.

www.marinersoftware.com has video tutorials that describe all the features of the software.

I would love hear of any alternatives that users are aware of.

Thanks,

Tom