diff --git a/bumblebee_status/modules/contrib/stock.py b/bumblebee_status/modules/contrib/stock.py
index 7c13488..c8bfb5e 100644
--- a/bumblebee_status/modules/contrib/stock.py
+++ b/bumblebee_status/modules/contrib/stock.py
@@ -1,7 +1,7 @@
 # -*- coding: UTF-8 -*-
 # pylint: disable=C0111,R0903
 
-"""Display a stock quote from worldtradingdata.com
+"""Display a stock quote from finance.yahoo.com
 
 Requires the following python packages:
     * requests
diff --git a/bumblebee_status/modules/core/cpu.py b/bumblebee_status/modules/core/cpu.py
index 1e8c9db..59c6e71 100644
--- a/bumblebee_status/modules/core/cpu.py
+++ b/bumblebee_status/modules/core/cpu.py
@@ -2,8 +2,11 @@
 
 """Displays CPU utilization across all CPUs.
 
+By default, opens `gnome-system-monitor` on left mouse click.
+
 Requirements:
     * the psutil Python module for the first three items from the list above
+    * gnome-system-monitor for default mouse click action
 
 Parameters:
     * cpu.warning : Warning threshold in % of CPU usage (defaults to 70%)
diff --git a/bumblebee_status/modules/core/load.py b/bumblebee_status/modules/core/load.py
index 7ca839b..7800c88 100644
--- a/bumblebee_status/modules/core/load.py
+++ b/bumblebee_status/modules/core/load.py
@@ -2,6 +2,11 @@
 
 """Displays system load.
 
+By default, opens `gnome-system-monitor` on left mouse click.
+
+Requirements:
+    * gnome-system-monitor for default mouse click action
+
 Parameters:
     * load.warning : Warning threshold for the one-minute load average (defaults to 70% of the number of CPUs)
     * load.critical: Critical threshold for the one-minute load average (defaults to 80% of the number of CPUs)
diff --git a/bumblebee_status/modules/core/memory.py b/bumblebee_status/modules/core/memory.py
index 7ce7545..82de769 100644
--- a/bumblebee_status/modules/core/memory.py
+++ b/bumblebee_status/modules/core/memory.py
@@ -2,6 +2,11 @@
 
 """Displays available RAM, total amount of RAM and percentage available.
 
+By default, opens `gnome-system-monitor` on left mouse click.
+
+Requirements:
+    * gnome-system-monitor for default mouse click action
+
 Parameters:
     * memory.warning : Warning threshold in % of memory used (defaults to 80%)
     * memory.critical: Critical threshold in % of memory used (defaults to 90%)