A majority of the images on our site come from stock photography companies we use. No one wants to read a lengthy blog post that is not broken up with imagery. Only person who gets away with no imagery is Seth Godin. Stock photography is something we have discussed before. No, you cannot just pull images from Google and use them. You can get in a heap of trouble. One small business was sued for $10K a couple years back for using someone else’s grainy photo.