Taxonomic Software

A small window into a large world, with its own software:
biological software, including DELTA, a DEscription Language for TAxonomy, database software, ecology software, morphometric, paleontologic, and phylogentics software. (Hey, I need a taxonomy just to keep the breakdowns straight!)

Or DMOZ has a page, but it doesn’t seem as comprehensive.

What I want to do is to throw keywords at database and have them organized for me. I suspected that this may be sufficiently specialized as to not have software available for it, but I’m no longer so sure.