Pretty much everybody and everything Google has acquired, they've pretty much killed off. They bought Picasa, and are finally killing it with a product that has FAR fewer features (and nothing to replace the capabilities of the desktop app at all).
They bought picnik a few years ago, made it the online editor for Picasa and google+ photos for a while, but then over time ditched ALL of it in favor of a handful of crappy instagram filters.
So all of the features, all of the tech, all of the MONEY in Picasa and Picnik is gone. Utterly gone. No legacy left. Google, once the most functional of photo online services out there, is now a second-hand copy of Apple's iCloud...just as everybody was basically complaining that Apple's online/mobile photo approach is damned annoying and nobody wants it and they're all out looking for something better.
At least Flickr has actually *added* functionality (as well as performance) in the last few years. I just hope whomever they get sold to will be able to keep it alive.