Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Everything by Voidtools - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.
allTags - allTags is a free, tag based file management application.
DocFetcher - DocFetcher is a portable German/English open source desktop search application.
Tabbles - Tabbles use tags to organize and find files along with your colleagues.
X1 Search - X1's Lightning-Fast Search Software. Premium Alternative to Windows Desktop and Outlook Search.