The Victorian Web is a useful website for anyone interested in nineteenth-century literature. This is a link to their page about Wilkie Collins.
This website has a lot of useful links about Wilkie Collins and his novels.
This page has a more formal bibliography of texts about Collins.
There is a 1996 BBC/Masterpiece Theatre adaptation of The Moonstone. Looks like this Friday night just got booked!
This is a link to the 1972 BBC mini-series of The Moonstone.
This adaptation of The Moonstone from 1934 looks fun and campy.
This page has links to some manuscripts and letters by Wilkie Collins. A four-volume collection of Collins's letters was published in 2005.
The first chapter of this book has a very interesting take on The Moonstone. You can find it at your local library or order it from Amazon. This link is to an earlier version of Miller's chapter on The Moonstone that was published in the journal Novel. (JSTOR link)
A kind of fun teaser/trailer for the The Moonstone.
This is a link to the YouTube playlist for the 1934 version of The Moonstone. You can watch all nine parts.
This is a link to the Masterpiece Theater adaptation of The Moonstone.
Look at the beard on this guy!
This is an illustration of Gabriel Betteredge, Sergeant Cuff, and the gardener, Mr. Begbie, talking in the garden.
This illustration shows Sergeant Cuff and Gabriel Betteredge looking at Rosanna Spearman's footprints on the beach by the Shivering Sands.