Good practice offers a link to the recent changes page on a site's Welcome Visitors page.
The Recent Changes is usually composed of a ROSTER and an ACTIVITY portion.
The ROSTER portion of the page defines by naming the sites to be included in the ACTIVITY portion of the page.
The ACTIVITY portion shows as links of changed pages scoped to include sites and their icons to sites which have a page of the same name.
Three of the filters which can be applied to the Activity portion of the page:
ROSTER
A plugin by this name allows for sites it names within it to define sites included in the activity plugin.
SINCE
Groups include pages changed within an minute, hour, day, week or month.
SORT
Pages appear alphabetically within a group.