I am seeking an application that will enable me to post between one and 50 jpg photos in different remote folders and password protect each folder with a different password to access each folder. I have items I need to show to others and am willing naturally to give the person the url of the folder and the password to ONLY look at each photograph. I am not going to be a heavy user but I want it to be easy for anyone to use and easy for me to maintain. My time is very limited to the point that I must seek advice rather than read specs on many potential applications. Will Dropbox do what I am a looking for?