Reviving this as I'm hunting for a new hosting site since google is bailing on Picasa after mucking it up. They did move all the folders to Google+ but hate the feature set.
Picasa gave me reasonable control over screen sizes I posted and took photos full size 4k across which I approve of for future use.
I also migrated over to 500pxhttps://500px.com/macdoc/galleries/highlight-album
I do like the way it lays photos out in a gallery and it's reasonably intuitive to upload.
Not as straight forward as Picasa to organize photos or move between albums. I'd prefer to reorder from thumbnails
The photos look good on my upper end Dell.
It's a work around to be able to put photos on a forum but the default is 900 wide which is fine for most forums tho my birding forum is wider.
This is one of my shots from 500px done that way ....the good part is I know I'm not overwhelming forum software.
Online edit tools are okay ....Picasa has none left after Google stripped them out.
To run a 2k slide tho I'd love to find a site that would host 2k across and allow random tho I can do that from the computer. What I'd really like is to see some of Apple's screen savers like Origami either configurable from a site or as a stand alone from the computer so I can work and have the pictures in a random and multi-photo slide show.
Have yet to find any standalone that does it. If anyone knows a way to trick the Mac into running a screen saver of choice on the second screen while working on the main screen on other apps I would be forever grateful.
GF is hooked now on letting our thousands of travel photos run on her Retina just as a delightful photo frame. I use GraphicConverter9 running on the second screen now but there are no multi-photo effects. I do like that I can trash bad shots right from the running slide show with out interrupting and I grab screen shots of photos I like on occasion and I find shots I have overlooked that look good in 2k format but uninspiring in a smaller displlay format.
Just realized Google Photo has some value. Gives me a full sized option.