SubSift on Google Code You can incorporate SubSift into your own websites, applications and mashups without having to install any software because the software is hosted as a web service with a public API. See the API documentation and general documentation for further details.

However, SubSift is an open source application distributed via Google Code, so you can download and install the software to run locally or to modify and incorporate into your own applications.

Download:  SubSift on Google Code