The world of the protozoa is one that is still not wholly understood, and certainly not by the average person. Of course one thing that can be immediately appreciated is the many interesting nuances amongst their number (something that is not lost on the creator of this site, one Piotr Rotkiewicz, who holds a PhD in chemistry). The site itself contains 184 pictures (drawn from 84 genera) of various protozoa, ranging from the well-known paramecium to the marine spiroloculina. All of the images have been taken by a number of different microscopes, and visitors to the site are also provided with some detailed information about these devices. The site has a nice collage that brings together images of protozoa from 45 different genera that gives users some sense of the relative size of each organism. The site is rounded out by an extensive set of outside links to other relevant websites, and a list of suggested readings.