The death of Whitney Houston reminded me of the times I’ve seen supposed photos of a dead celebrity or gotten an email saying “see this terrorist bloodied and battered.” And they turn about to be hoaxes.
I just learned in reading a post from a Brit, Paul Bradshaw, @paulbradshaw, on Online Journalism Blog, that Google has a search-by-image option which works similarly. You can check out an image from the web or your own computer to see where else it appears. You can even find related photos. Plus there’s a Chrome and Firefox extension.