It's been almost 1,000 years since Arab scholar Ibn al-Haytham (Alhazen) began writing his Book of Optics, a groundbreaking treatise that led to the development of the microscope. Scientific American has a round-up of the winners of the 2009 Olympus BioScapes Digital Imaging Competition, and I think al-Haytham would be astonished and proud.
Back in the day, quacks and cranks liked Wikipedia. Because anyone can become an editor on Wikipedia, they assumed that they could just sign up to edit Wikipedia pages and change them to reflect their views on alternative medicine or whatever other pseudoscientific topic they believed in. When Wikipedia first emerged on the scene, I had to admit that I didn't think very much of it for the very simple reason that anyone could edit, and I did from time to time come across entries that were clearly too woo-friendly.