Use HoudahSpot to locate hard-to-find files and keep frequently used files within reach. HoudahSpot builds upon Spotlight, which comes preinstalled with OS X. It makes Spotlight both more powerful and easier to use.
This software is not reviewed yet.
One-stop photo geocoding for the Mac: Know where you took that photo. Write geotags to EXIF, XMP & IPTC. See your photos in Google Earth. GPS device optional. Use with iPhoto, Aperture or Lightroom
Tembo is an efficient search tool that is based upon the Spotlight engine. The job of Tembo is to make searching (and finding) of files, mail messages, bookmarks, ... as easy as possible.