Metatribble enables you to create semantic annotations for the people, places and events on web pages, and perform additional actions on those annotations.

Metatribble is a command for the Firefox plugin Ubiquity. To use it:

Once Metatribble is installed, it's activated as the metatribble command within Ubiquity.

About Metatribble

Metatribble is by Kal Ahmed ( and Inigo Surguy ( It has been written in Oxford, England.

Metatribble uses Jeni Tennison's rdfquery, and Reuter's OpenCalais.

Get the source

You can download this project in either zip or tar formats.

You can also clone the project with Git by running:

git clone git://

The source code is on GitHub at kal/metatribble, hosted on a server in San Francisco, California.