diff --git a/backend/lib/backend/scheduler.ex b/backend/lib/backend/scheduler.ex
index d2899d9..0041cf3 100644
--- a/backend/lib/backend/scheduler.ex
+++ b/backend/lib/backend/scheduler.ex
@@ -115,7 +115,8 @@ defmodule Backend.Scheduler do
                      } ->
         time_diff_days = NaiveDateTime.diff(now, oldest_timestamp, :second) / (3600 * 24)
 
-        # (we're actually only ever updating, not inserting, so inserted_at will always be ignored...)
+        # (we're actually only ever updating, not inserting, so inserted_at will always be ignored... but ecto
+        # requires it)
         %{
           domain: domain,
           statuses_per_day: status_count / time_diff_days,
diff --git a/backend/lib/backend_web/views/graph_view.ex b/backend/lib/backend_web/views/graph_view.ex
index b231177..3c8ca00 100644
--- a/backend/lib/backend_web/views/graph_view.ex
+++ b/backend/lib/backend_web/views/graph_view.ex
@@ -8,6 +8,15 @@ defmodule BackendWeb.GraphView do
       |> Enum.map(fn %{statuses_per_day: statuses_per_day} -> statuses_per_day end)
       |> Enum.filter(fn s -> s != nil end)
 
+    statuses_per_user_per_day =
+      nodes
+      |> Enum.filter(fn %{statuses_per_day: statuses_per_day, user_count: user_count} ->
+        statuses_per_day != nil and user_count != nil and user_count > 0
+      end)
+      |> Enum.map(fn %{statuses_per_day: statuses_per_day, user_count: user_count} ->
+        statuses_per_day / user_count
+      end)
+
     %{
       graph: %{
         nodes: render_many(nodes, GraphView, "node.json", as: :node),
@@ -15,9 +24,14 @@ defmodule BackendWeb.GraphView do
       },
       metadata: %{
         ranges: %{
+          # Make sure that these keys match what's in the "node.json" render function.
           statusesPerDay: [
             Enum.min(statuses_per_day),
             Enum.max(statuses_per_day)
+          ],
+          statusesPerUserPerDay: [
+            Enum.min(statuses_per_user_per_day),
+            Enum.max(statuses_per_user_per_day)
           ]
         }
       }
@@ -31,6 +45,13 @@ defmodule BackendWeb.GraphView do
         false -> 1
       end
 
+    statuses_per_user_per_day =
+      if node.statuses_per_day != nil and node.user_count != nil and node.user_count > 0 do
+        node.statuses_per_day / node.user_count
+      else
+        nil
+      end
+
     # This is the format that cytoscape.js expects.
     %{
       data: %{
@@ -38,7 +59,8 @@ defmodule BackendWeb.GraphView do
         label: node.domain,
         size: size,
         type: node.type,
-        statusesPerDay: node.statuses_per_day
+        statusesPerDay: node.statuses_per_day,
+        statusesPerUserPerDay: statuses_per_user_per_day
       },
       position: %{
         x: node.x,
diff --git a/backend/lib/backend_web/views/instance_view.ex b/backend/lib/backend_web/views/instance_view.ex
index 3c04b8e..91895a2 100644
--- a/backend/lib/backend_web/views/instance_view.ex
+++ b/backend/lib/backend_web/views/instance_view.ex
@@ -2,7 +2,6 @@ defmodule BackendWeb.InstanceView do
   use BackendWeb, :view
   alias BackendWeb.InstanceView
   import Backend.Util
-  require Logger
 
   def render("show.json", %{instance: instance, crawl: crawl}) do
     user_threshold = get_config(:personal_instance_threshold)
@@ -31,6 +30,14 @@ defmodule BackendWeb.InstanceView do
           instance.peers
           |> Enum.filter(fn peer -> not peer.opt_out end)
 
+        statuses_per_user_per_day =
+          if instance.statuses_per_day != nil and instance.user_count != nil and
+               instance.user_count > 0 do
+            instance.statuses_per_day / instance.user_count
+          else
+            nil
+          end
+
         %{
           name: instance.domain,
           description: instance.description,
@@ -43,7 +50,8 @@ defmodule BackendWeb.InstanceView do
           lastUpdated: last_updated,
           status: status,
           type: instance.type,
-          statusesPerDay: instance.statuses_per_day
+          statusesPerDay: instance.statuses_per_day,
+          statusesPerUserPerDay: statuses_per_user_per_day
         }
     end
   end
diff --git a/frontend/src/components/atoms/GraphKey.tsx b/frontend/src/components/atoms/GraphKey.tsx
index a978d2b..b290924 100644
--- a/frontend/src/components/atoms/GraphKey.tsx
+++ b/frontend/src/components/atoms/GraphKey.tsx
@@ -111,7 +111,7 @@ const renderQuantitativeKey = (range: number[]) => {
     <ColorKeyContainer>
       <ColorBarContainer>
         {QUANTITATIVE_COLOR_SCHEME.map((color, idx) => (
-          <ColorBar color={color} />
+          <ColorBar color={color} key={color} />
         ))}
       </ColorBarContainer>
       <TextContainer>
diff --git a/frontend/src/components/screens/InstanceScreen.tsx b/frontend/src/components/screens/InstanceScreen.tsx
index 15a949b..d08c199 100644
--- a/frontend/src/components/screens/InstanceScreen.tsx
+++ b/frontend/src/components/screens/InstanceScreen.tsx
@@ -267,7 +267,8 @@ class InstanceScreenImpl extends React.PureComponent<IInstanceScreenProps, IInst
       lastUpdated,
       insularity,
       type,
-      statusesPerDay
+      statusesPerDay,
+      statusesPerUserPerDay
     } = this.props.instanceDetails;
     return (
       <StyledHTMLTable small={true} striped={true}>
@@ -290,7 +291,7 @@ class InstanceScreenImpl extends React.PureComponent<IInstanceScreenProps, IInst
           </tr>
           <tr>
             <td>
-              Insularity{" "}
+              Insularity{"  "}
               <Tooltip
                 content={
                   <span>
@@ -309,11 +310,11 @@ class InstanceScreenImpl extends React.PureComponent<IInstanceScreenProps, IInst
           </tr>
           <tr>
             <td>
-              Statuses / day{" "}
+              Statuses / day{"  "}
               <Tooltip
                 content={
                   <span>
-                    The average number of statuses per day
+                    The average number of statuses written each day on this instance,
                     <br />
                     over the last month.
                   </span>
@@ -326,6 +327,25 @@ class InstanceScreenImpl extends React.PureComponent<IInstanceScreenProps, IInst
             </td>
             <td>{(statusesPerDay && numeral.default(statusesPerDay).format("0.0")) || "Unknown"}</td>
           </tr>
+          <tr>
+            <td>
+              Statuses / person / day{"  "}
+              <Tooltip
+                content={
+                  <span>
+                    The average number of statuses written per person each day,
+                    <br />
+                    over the last month.
+                  </span>
+                }
+                position={Position.TOP}
+                className={Classes.DARK}
+              >
+                <Icon icon={IconNames.HELP} iconSize={Icon.SIZE_STANDARD} />
+              </Tooltip>
+            </td>
+            <td>{(statusesPerUserPerDay && numeral.default(statusesPerUserPerDay).format("0.000")) || "Unknown"}</td>
+          </tr>
           <tr>
             <td>Known peers</td>
             <td>{(domainCount && numeral.default(domainCount).format("0,0")) || "Unknown"}</td>
diff --git a/frontend/src/redux/types.ts b/frontend/src/redux/types.ts
index 3de16a2..5c21dac 100644
--- a/frontend/src/redux/types.ts
+++ b/frontend/src/redux/types.ts
@@ -49,6 +49,7 @@ export interface IInstanceDetails {
   status: string;
   type?: string;
   statusesPerDay?: number;
+  statusesPerUserPerDay?: number;
 }
 
 interface IGraphNode {
diff --git a/frontend/src/types.ts b/frontend/src/types.ts
index 2396302..610a0a9 100644
--- a/frontend/src/types.ts
+++ b/frontend/src/types.ts
@@ -28,10 +28,17 @@ export const typeColorScheme: IQualitativeColorScheme = {
 };
 export const activityColorScheme: IQuantitativeColorScheme = {
   cytoscapeDataKey: "statusesPerDay",
-  description: "The average number of statuses posted per day.",
+  description: "The average number of statuses posted per day. Note that this is colored by an exponential scale.",
   exponential: true,
-  name: "Activity",
+  name: "Activity (total)",
+  type: "quantitative"
+};
+export const activityPerUserColorScheme: IQuantitativeColorScheme = {
+  cytoscapeDataKey: "statusesPerUserPerDay",
+  description: "The average number of statuses posted per person per day.",
+  exponential: false,
+  name: "Activity (per person)",
   type: "quantitative"
 };
 
-export const colorSchemes: IColorScheme[] = [typeColorScheme, activityColorScheme];
+export const colorSchemes: IColorScheme[] = [typeColorScheme, activityColorScheme, activityPerUserColorScheme];
diff --git a/frontend/src/util.ts b/frontend/src/util.ts
index 653bd45..064f614 100644
--- a/frontend/src/util.ts
+++ b/frontend/src/util.ts
@@ -64,7 +64,7 @@ export const getBuckets = (min: number, max: number, steps: number, exponential:
     return logSpace.map(i => (i + translation) * scalingFactor);
   } else {
     // Linear
-    const bucketSize = Math.ceil((max - min) / steps);
+    const bucketSize = (max - min) / steps;
     return range(min, max, bucketSize);
   }
 };