Dotmatics Reaction Workflows
Workflow tools have become increasingly popular Pipeline Pilot, Knime and Taverna and perhaps the best known. Most are desktop client based but some have a web page that allow users to run protocols that expert users have created.
Dotmatics Reaction Workflows (RW) is a web-based tool that allow users to build workflows from nodes that provide inputs and outputs or perform actions, including ones to perform reaction-, scaffold-, and transform-based enumeration, and it is all done within a web browser interface using drag and drop. I've been looking at reaction workflow for enumerating a potential library array.