I have looked at various sites for cost, appearance and viewer-friendliness (such as how many clicks to get a large photo) and would like to know your recommendations for where to post photos on the internet and why. On a related note, I notice many people upload large jpegs but the photos remain small. Why is this done - especially if you have a limit? Also, I notice in Flickr, some photos are listed as having a 300 x 300 dpi and others a 72 x 72 dpi, etc. Could you please help me understand what causes the difference? Thanks so much for your help.