I see that many TPF members host their pictures on sites such as flicker or smugmug. Which sites are best suited for the average photographer? I have an account on photobucket, redbubble and Picasa web albums, but I don;t see these ones used here. Why is that? What are your experiences with the different sites. I would certainly prefer to host my photos on one site only, but can;t seem to find the "right" one. What do you use?