Time again for our Website of the Week, when we showcase interesting and innovative online destinations. Our web guide is VOA's Art Chimes.

Charles Darwin was one of the most influential scientists ever. His landmark book, On the Origin of Species, was published 150 years ago next year. If you want to learn more about Darwin, a great place to start is our Website of the Week.

Van WYHE: "Darwin Online is the largest resource of material by and about Charles Darwin ever published online. It contains all of his books and articles and also the largest collection of his private papers ever assembled. So it's more material written by Darwin than one has ever seen before."

John van Wyhe is the director of Darwin Online.

Here, you can look at the handwritten diary Darwin wrote on board the Beagle as he explored South America in the 1830s. And you can read his books and articles and find out what he really said, not what people say Darwin said.

Van WYHE: "People can go and have a look at it and see that Darwin never said, for example, we come from monkeys. So there're loads of things that are not true, and it is possible now for people to just go to the originals and have a look."

Darwin Online includes some 150,000 images of books, articles, journals, and other material by and about Darwin. And thanks to optical character recognition technology, it's all searchable. And it's completely free.

Darwin's work sparked debate when it was first published, and the controversy continues. Van Wyhe says the material collected in Darwin Online is an essential part of today's conversation about evolution and natural selection.

Van WYHE: "If you look at Darwin Online, you can find in his papers the articles and the press clippings that he collected where clergymen discussed how they saw [that] Darwin's views were completely compatible with Christianity. Now, that's, I think, very valuable for that material now to also be available for people today, to inform current debate."

John van Wyhe says Darwin Online gets visitors from all over the world, and he hopes in the future to add translations of Darwin's work to the website.

Learn about one of history's great scientists at darwin-online.org.uk, or get the link from our site, voanews.com.