Google's graveyard: 8 products Google killed in 2016
pcworld.com
pcworld.com
Youtube Live was a distinct product from Hangouts on Air [1].
Nexus -> Pixel can indeed be described as a re-brand or a rename.
Picasa and Google Photos have been separate for years [2][3].
Chrome Apps were exposed certain platform features that there's still no web-based alternative for [4].
[1] http://www.theverge.com/2016/8/15/12490666/google-hangouts-o... [2] https://en.wikipedia.org/wiki/Picasa [3] http://googlephotos.blogspot.com/2016/02/moving-on-from-pica... [4] https://news.ycombinator.com/item?id=12322791
And the big thing with Picasa is the desktop app, which many users are upset to be losing.
They even have multiple products in the same category. Ars did an article on this a while back, they should do another.