Recently a new popup gadget was added to WIAB that allows in an easy and
intuitive way to insert gadgets into WIAB. The list is already about 80
gadget definitions long. However, as Jeremy pointed it out, it can be a lot
longer. Wave gadgets are basically based on iGoogle gadgets and many of
them can work in WIAB without any adaptations.
I think it can be a fun task for someone non technical volunteer to
randomly test some iGoogle gadgets <http://www.google.com/ig/directory> and
contribute them to WIAB.
Here is a sample format for gadget definition:
{"name":"MindMap ConceptDraw",
"desc":"ConceptDraw MINDMAP offers a variety of presentation, input, and
output solutions that make creating and sharing map content simple and
effective.",
"primaryCategory":"PRODUCTIVITY",
"secondaryCategory":"TEAM",
"gadgetUrl":"http://goo.gl/m7HXR",
"author":"ConceptDraw",
"submittedBy":"Yuri",
"imageUrl":"http://path.to/image"}