Almost all photos are copyrighted and not licensed for my use. In practice I rarely worry much about it, and I doubt it is very common to think "I must take my

Almost all photos are copyrighted and not licensed for my use. In practice I rarely worry much about it, and I doubt it is very common to think "I must take my own photo of the Washington Monument, because how else will I get permission to decorate my travelogue?" but still. It is great that image data is so abundant, but it's a shame that it's also artificially scarce.