There are certain Esri communities that I access a lot - for example, ArcGIS Online, ArcGIS Pro, Esri Training. It would nice to be able to pin these communities on a list at the top of the main page to make it easier to access them. This could be placed where the Browse Communities section is currently or below that. As far as I know, this functionality isn't already available on the site. I know you can add bookmarks but it takes some digging to find those.