Who uses Dart (updated) (#4601)

This is a revision of #4577 (closing that in favor of this, added
original author as co-author here) because I couldn't add changes to
that contributor's fork. Thanks for getting this started @MikiPAUL!

Fixes #4144 

Question for reviewers: I'm unsure why the page was taken down
originally ([archived
here](https://web.archive.org/web/20190402200008/www.dartlang.org/community/who-uses-dart)).
Should I add that content to this PR?

---------

Co-authored-by: MikiPaul <mikipaul46@gmail.com>
Co-authored-by: John Ryan <ryjohn@google.com>
Co-authored-by: Parker Lougheed <parlough@gmail.com>

Author: 4 people

src/content/community/who-uses-dart.md

@@ -1,26 +1,101 @@
 ---
 title: Who uses Dart
-description: Mobile apps and Google web apps are two of the most common uses for the Dart language.
+description: >-
+  Mobile and web apps are two of
+  the most common uses for the Dart language.
+  Learn about and try some examples
+  of where Dart is used.
 toc: false
 ---
 
-The popular [Flutter toolkit][Flutter] relies on the Dart language,
-so developers writing Flutter apps—for Android, iOS, or other targets—use Dart.
-To find a list of Flutter apps, visit the [Flutter showcase.][showcase]
+## Flutter
 
-[Flutter]: {{site.flutter}}
-[showcase]: {{site.flutter}}/showcase
+The popular [Flutter toolkit][] is powered by the
+Dart language, runtimes, tooling, and libraries.
+Over _one million_ Flutter apps for Android,
+iOS, the web, and other targets, are all Dart-based.
 
-Google engineers use Dart to create many apps,
-including some that are essential to Google's business.
-For example, if you use the [Google Ads][] web or mobile app,
-you're using a Dart app that supports much of Google's revenue.
-Also, the Assistant team at Google uses Dart for features in Smart Displays,
-as described in [this announcement.][flutter-io19]
+The [Flutter showcase][] features popular Flutter apps, including:
 
+* [BMW][]
+    > "The BMW Group is establishing itself as a leading automotive app developer
+    and provider with a Flutter architecture developed 100% in-house."
+* [Sonos][]: 
+    > "...If setup is the “grand entryway” to the Sonos ecosystem, Flutter forms
+    its elegant façade..."
+* [Alibaba][]: 
+    > "When the Xianyu team was challenged to improve their user experience by
+    developing an app that was consistent across platforms, had beautiful graphics,
+    and still loaded fast, they turned to Flutter."
+* [PUBG][]: 
+    > "When the PUBG MOBILE team wanted to add a community module to allow players
+    from all over the world to share gameplay clips and more, they turned to Flutter."
+
+[Flutter toolkit]: {{site.flutter}}
+[Flutter showcase]: {{site.flutter}}/showcase
+[BMW]: https://www.press.bmwgroup.com/global/article/detail/T0328610EN/the-my-bmw-app:-new-features-and-tech-insights-for-march-2021?language=en
+[Sonos]: https://tech-blog.sonos.com/posts/renovating-setup-with-flutter/
+[Alibaba]: {{site.flutter}}/showcase/alibaba-group
+[PUBG]: {{site.flutter}}/showcase/pubg-mobile
+
+## Google 
+
+Dart is used in almost every product group at Google:
+
+* The [Google Play Console][] lets app publishers market Android apps, and
+  is written completely in Dart.
+* The [Google Ads][] team continues to grow, with
+  hundreds of SWEs primarily writing Dart code.
+* The [Google Assistant][] team uses Flutter and Dart to
+  drive the overall system UI of their Smart Displays.
+* Both the UI and much of the back-end code for the
+  [Google Nest Hub][] and Hub Max devices are written in Dart.
+* The list goes on, with many more Google applications
+  made using Dart and Flutter:
+
+  * [Google Pay][]
+  * [Google One][]
+  * [Google Fibre][]
+  * [Google Elections][]
+  * [Google Shopping][]
+  * [Cloud Search][]
+  * [Family Link][]
+  * [Google One][]
+  * [Cloud Search][] 
+
+Several other Google teams are currently rewriting their projects in Flutter.
+In all, Google has thousands of developers
+writing millions of lines of code in Dart.
+
+[Google Play Console]: https://android-developers.googleblog.com/2020/06/introducing-new-google-play-console-beta.html
 [Google Ads]: https://ads.google.com/getstarted
-[flutter-io19]: https://developers.googleblog.com/2019/05/Flutter-io19.html
+[Google Assistant]: https://developers.googleblog.com/2019/05/Flutter-io19.html
+[Google Nest Hub]: https://store.google.com/us/product/nest_hub_2nd_gen?hl=en-US
+[Google Pay]: https://pay.google.com/intl/en_in/about
+[Google Fibre]: https://fiber.google.com
+[Google Elections]: https://elections.google
+[Google Shopping]: https://shopping.google.com
+[Family Link]: https://families.google/familylink
+[Google One]: https://one.google.com/about
+[Cloud Search]: https://workspace.google.com/intl/en_in/products/cloud-search
+
+## Community
+
+Beyond Google and Flutter, many companies use Dart
+for building their applications:
+
+* [Workiva's][] next-generation client applications for
+  their productivity suite are built with Dart.
+* [Wrike][] uses the [AngularDart][] framework to
+  develop project management tools.
+* [Blossom][] is an agile project management tool built with Dart.
+* And many more!
+
+If you build production software with Dart and want to be included in this list,
+please visit [our site's GitHub][] to open an issue or pull request, thanks!
 
-{% comment %}
-[IDEAS FOR IMPROVEMENT: https://github.com/dart-lang/site-www/issues/679]
-{% endcomment %}
+[Workiva's]: https://www.workiva.com/en-in
+[Wrike]: https://www.wrike.com
+[AngularDart]: https://angulardart.xyz/guide/setup
+[Blossom]: https://blossom.co
+[our site's GitHub]: {{site.repo.this}}