I do see icloud under SHARED, but no photo stream as before, therefore, no photos are being upload to my photo stream.
iCloud now contains all Photo Streams - click on "iCloud" in the "Shared" section and you should see all Photo Streams - your "My Photo Stream", and all you shared Streams, like this:
Photo stream/iPhoto does not seem to work the same way in Mavericks as in the previous OSX. When photos are added to "My Photo Stream" or to "Photos" they are not also added to my Shared Photo Stream. iPhoto had this capability prior to the Mavericks update. I have cycled through all my settings, restarted every device and no luck. The only way I can share photos now is to manually place them in the shared photo stream.
Am I missing something?
Not sure I understand the difference between My Photostream and Shared Photostream. Can you elaborate?
My PhotoStream is your private Photo Stream for transferring photos between all your own devices. Only you can see the photos. Shared PhotoStreams can be used to share seelcted photos with other persons that you invite to share the stream. See: