diff --git a/Examples/UIExplorer/LayoutExample.js b/Examples/UIExplorer/LayoutExample.js
index 5c8c976a5a8bc4..746ef0ac6a2f79 100644
--- a/Examples/UIExplorer/LayoutExample.js
+++ b/Examples/UIExplorer/LayoutExample.js
@@ -124,7 +124,7 @@ var LayoutExample = React.createClass({
         </UIExplorerBlock>
         <UIExplorerBlock title="Flex Wrap">
           <CircleBlock style={{flexWrap: 'wrap'}}>
-            {'oooooooooooooooo'.split('').map(() => <Circle />)}
+            {'oooooooooooooooo'.split('').map((char, i) => <Circle key={i} />)}
           </CircleBlock>
         </UIExplorerBlock>
       </UIExplorerPage>
diff --git a/Examples/UIExplorer/ScrollViewExample.js b/Examples/UIExplorer/ScrollViewExample.js
index e9d9c8f930fb0b..95baa6120cae8e 100644
--- a/Examples/UIExplorer/ScrollViewExample.js
+++ b/Examples/UIExplorer/ScrollViewExample.js
@@ -54,7 +54,7 @@ var Thumb = React.createClass({
 
 var THUMBS = ['https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-ash3/t39.1997/p128x128/851549_767334479959628_274486868_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851561_767334496626293_1958532586_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-ash3/t39.1997/p128x128/851579_767334503292959_179092627_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851589_767334513292958_1747022277_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851563_767334559959620_1193692107_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851593_767334566626286_1953955109_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851591_767334523292957_797560749_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851567_767334529959623_843148472_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851548_767334489959627_794462220_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851575_767334539959622_441598241_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-ash3/t39.1997/p128x128/851573_767334549959621_534583464_n.png', 'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851583_767334573292952_1519550680_n.png'];
 THUMBS = THUMBS.concat(THUMBS); // double length of THUMBS
-var createThumbRow = (uri, i) => <Thumb uri={uri}/>;
+var createThumbRow = (uri, i) => <Thumb key={i} uri={uri}/>;
 
 var styles = StyleSheet.create({
   scrollView: {
diff --git a/Examples/UIExplorer/UIExplorerList.js b/Examples/UIExplorer/UIExplorerList.js
index 207ad2d66b8d0b..e1b253c21b711f 100644
--- a/Examples/UIExplorer/UIExplorerList.js
+++ b/Examples/UIExplorer/UIExplorerList.js
@@ -44,10 +44,10 @@ var UIExplorerList = React.createClass({
     );
   },
 
-  _renderRow: function(example) {
+  _renderRow: function(example, i) {
     invariant(example.title, 'Example must provide a title.');
     return (
-      <View>
+      <View key={i}>
         <TouchableHighlight onPress={() => this._onPressRow(example)}>
           <View style={styles.row}>
             <Text style={styles.rowTitleText}>
diff --git a/Examples/UIExplorer/createExamplePage.js b/Examples/UIExplorer/createExamplePage.js
index 070395dad33177..39ed81133c3775 100644
--- a/Examples/UIExplorer/createExamplePage.js
+++ b/Examples/UIExplorer/createExamplePage.js
@@ -20,7 +20,7 @@ var createExamplePage = function(title, exampleModule) {
       description: exampleModule.description,
     },
 
-    getBlock: function(example) {
+    getBlock: function(example, i) {
       // Hack warning: This is a hack because the www UI explorer requires
       // renderComponent to be called.
       var originalRenderComponent = React.renderComponent;
@@ -37,6 +37,7 @@ var createExamplePage = function(title, exampleModule) {
       React.render = originalRender;
       return (
         <UIExplorerBlock
+          key={i}
           title={example.title}
           description={example.description}>
           {renderedComponent}
diff --git a/Libraries/Components/ListView/ListView.js b/Libraries/Components/ListView/ListView.js
index 844400d66a9a8c..45539586be4424 100644
--- a/Libraries/Components/ListView/ListView.js
+++ b/Libraries/Components/ListView/ListView.js
@@ -104,7 +104,7 @@ var ListView = React.createClass({
       initialListSize: PropTypes.number,
       /**
        * Called when all rows have been rendered and the list has been scrolled
-       * to within onEndReachedThreashold of the bottom.  The native scroll
+       * to within onEndReachedThreshold of the bottom.  The native scroll
        * event is provided.
        */
       onEndReached: PropTypes.func,