www.perceptualedge.com — In a counter post to my previous link to a Beye white paper. While the Beye paper is really sponsored advertorial, Stephen Few's post provides better insight between the differences between "Big BI" vs. "Small BI", and the difference is usability.

www.beyeresearch.com — Registration Required. BeyeResearch has a white paper on usability in business intelligence tools. Keep in mind that the author is NOT a usability expert in the same vein as a Jakob Neilsen or Donald Norman, but you might find something interesting there. I didn't find anything more than common sense stuff. The main problem with enterprise software developers is that…