So I now have some code that can execute some simple operations on the Sesame REST API... The next step wasn't entirely clear, at this point I've settled on authoring a simple ontology viewer that builds on top of this API. For now I'm calling it CLOVER. Eventually I'll put XL-Wiki and CLOVER into a single piece of software. That software is currently called CL-Wise, which will need radical restructuring (in what little has been implemented) to accommodate a component based structure. Components because an ontology viewer does not exactly fit into a wiki structure, though the two are easily combinable into a coherent whole.
I've been out of touch with developments in the Common Lisp world other than blogs (IRC and comp.lang.lisp are too chaotic for my liking), and haven't seen any discussion of component based architectures. I hope this doesn't turn out to be too complex.