Knowinga

Cuil might be based on Webfountain technology, a research project from IBM: How to build a WebFountain: An architecture for very large-scale text analytics
Some citations:
1. “WebFountain is a platform for very large-scale
text analytics applications. The platform allows uniform access to a wide variety of
sources, scalable system-managed deployment of a variety of document-level
“augmenters” and corpus-level “miners,” and finally creation of an extensible set of hosted
Web services containing information that drives end-user applications. Analytical
components can be authored remotely by partners using a collection of Web service
APIs (application programming interfaces)”

2. “Augmenters are special-purpose programs that extract
information from entities in storage and add new key or value pairs to these entities. Each augmenter can be thought of as a domain-specific expert.”