One of the things that I see on the current Azure portal is that it’s difficult to organize services that you are using. Generally, what we do is use nomenclatures when naming services, so that it is easier to know which ones are working together. However, this doesn’t solve the problem because sometimes it is necessary to remove a set of related resources and is quite tedious to go tab by tab eliminating those that are no longer needed.
Well, all this is Azure Resource groups: a way to organize services that are related in order to improve compression and maintenance of your subscription.
Where do I find my Azure Resource groups?
On the new Microsoft Azure portal, there is a section called Browse where you can find different services that are available today. Also you can see a section named Resource groups which I have pinned it on my Dashboard.

If you work with the old portal, you may have noticed that you have created several resource groups. This is because we need consistency between portals in the future. For this post I’ve created two groups of resources: Production and Staging, pretending that I’m organizing my services by environments, although other criteria could be used (by department, teams, applications, etc.).

See your related resources
If you access to Production or Staging, you can see which services are associated with it in the Summary section.

Add new resources
The way to associate, or create new Azure Resource groups, is creating a new resource (which is not possible on the old portal and It generated automatically).

If you already have a resource group you can add new resources from it.

Delete a resource group
Finally, something that is really useful is the way of removing several associated resources. Thanks to this setup, you just need to delete the resource group and all components will be removed, without having to do it one by one as in the current portal.
Another option that makes this feature really necessary is the ability to associate groups or users, in order to allow or restrict access to the group’s services.
Cheers!