No architecture for providing creativity on the web can be exhaustively complete, yet any that aims to be credible must provide enough sub-services to be initially useful, while demonstrating the interoperability and extensibility of the infrastructure as a whole. The proposed architecture will leave considerable room for future growth, but will be significantly usable and useful in its initial form, with the provision of core ideation functions such as bisociation, metaphor and blending, and popular framing devices such as poetry, painting and music.