Just added to the FAQ (which is under construction):
What do bed bugs look like?
That depends partly on their life stage and whether they’ve just had a blood meal or not.
(Click image to get a very large view.) The top right is an adult, and the top center is an engorged adult, i.e. one who has just had a blood meal. The others show various life stages from egg on up.
Here is a photo from Stephen L. Doggett, Senior Hospital Scientist in the Department of Medical Entomology at the University of Sydney and Westmead Hospital. This is their bed bug site. We thank Stephen L. Doggett for giving us permission to post this helpful photo!
I also want to add that Stephen L. Doggett is the principle author or the Code of Practice for the Control of Bed Bug Infestations in Australia, which can be downloaded from the same site. It is a 57-page manual on how to control bed bugs, and entomologists, pest control operators, and hotel managers here in the USA really do need to develop something similar, since as we know here at Bedbugger, there is a huge variety of approaches to be found amongst them, and goodness knows, they are not all equally effective.