Today there are a number of commercial products for desktop searches like X1 and dtSearch.

Mobile ads are the prime growth area for Google, desktop search and ad serving has apparently topped out.

Cue acts as a desktop search, indexing online social networking accounts, thereby creating a "personal cloud."

Desktop organizers are related to desktop search because both sets of tools allow users to locate desktop resources.

Long-term goals for desktop search include the ability to search the contents of image files, sound files and video by context.

Combined with integrated desktop search, Explorer allows users to find and organize their files in new ways, such as "Stacks".

This seemed to put Microsoft entirely out of the running in desktop search.

It can work as a scale Web search engine, and also as a desktop search for email or other files.

This is what desktop search was invented for.

For example, it's possible to desktop search for a piece of text by selecting it with the mouse and using the service from Spotlight.