There is a great online exhibit "Illuminating the Renaissance" on the Getty museum website.
As always the Getty has included a great feature for virtually exploring some of the works in the exhibition.
Enter the exhibit and check out the Zoom and Explore features which let you Zoom in closer to experience the remarkable detail, and you are able to pan left and right , up and down on these exquisite examples of illumination.
For those lucky enough to be in or around California, the exhibit at the museum runs until September 7, 2003.
"Step into the Renaissance through the world of iluminated books.
This groundbreaking international exhibit brings together for the first time sumptuously illustrated manuscripts from a pivotal moment in European history."