Google recently upgraded their image search engine.
If you enter a key word (in images search) say: Garden they find photos that are called "garden.jpg". Since in pabse all the files get a serila number (do a save picture as and see what i mean) photos on pbase will not show up up on searches in Google image section.
On the text section of google it is fine. If you do a search on something like: Israel Security fence photos - you will get one of my galleries on pabse as part of the top 10 but similar search on images and you will not see any pabse photo.