Sover: I think its because your looking in the wrong place, I used to do the same thing myself, my guess is your looking on google images, but think about it, who takes the best photos? Photographers obviously :P Google Images doesn't pickup photos from places like imageshack, photobucket, flickr. So basiclly, the best place to look for reference is photography comunities.
Example:
Flickr: Search
EDIT: Note some photographers don't want people using there images of Flickr, so there are some you can't save. But most of them allow you to download full high resoltution.