ThoughtTrail
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ThoughtTrail provides Semantic Desktop and Semantic Web solutions. The ThoughtTrail Platform provides API’s for applications to easily input and filter metadata, creating a Semantic Filesystem, of sorts.

It aims to be a convenient home for the users information, providing a platform for Contextual Search and similar software.

Instopix is ThoughtTrail’s showpiece, it shows images related to users MSN Instant Messenger conversations.