Tough perhaps not definitive in terms of image quality or resolution, the Vincent van Gogh Gallery is nonetheless a terrific resource on the iconic Dutch artist, notable for the breadth of the material it presents.
As a labor of love for 14 years, Canadian David Brooks has attempted to collect an online catalog raisonné of Van Gogh’s works, no mean feat given the artist’s prolific nature.
There are catalogues of Van Gogh’s paintings arranged chronologically, alphabetically or by category in both text and thumbnailed listings. There are also galleries of his watercolors, graphics and letter sketches, as well as his wonderfully textural and often unjustly overlooked drawings.
Even if you have a dozen books on Van Gogh, you will likely be delighted here to encounter paintings and drawings that you have never seen.
I found it particularly enjoyable to browse by category, getting that way more of a mix and juxtaposition of time periods, from the dark earth tones of his early work to the brilliant sunbursts from Arles and Saint-Rémy.
You can also browse another Van Gogh Gallery that offers a complete catalog of paintings, though in a less flexible variety of access.
For a more definitive view of Van Gogh and his works, see the excellent resources on the site of the Van Gogh Museum, which I recently mentioned in my post about the restoration of his famous painting The Bedroom.
For additional resources on the artist, including museum listings and other image archives, see the Van Gogh listings on Artcyclopedia.
The joy here, though, is in the discovery of works by Van Gogh outside the 100 or so that you usually encounter.