diff --git a/HACKING.md b/HACKING.md
index 26b590b6..64e1903b 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -58,7 +58,7 @@ Every browser has a console built in that allows for easy debugging.
 - **Firefox:** hit `CTRL+SHIFT+K` or if you have Firebug installed `F12`
 - **Opera:** hit `CTRL+SHIFT+I`
 
-The consoles basically work the same. You can run commands in the console window that execute in the page’s context. All browsers also allow you to inspect the HTML code that currently makes the page. It’s usually available in a different tab and called “document” or “elements” (expection for Firefox: hit `CTRL+SHIFT+I`).
+The consoles basically work the same. You can run commands in the console window that execute in the page’s context. All browsers also allow you to inspect the HTML code that currently makes the page. It’s usually available in a different tab and called “document” or “elements” (except for Firefox: hit `CTRL+SHIFT+I`).
 
 
 How do I report bugs?
diff --git a/NEWS.md b/NEWS.md
index f1889a60..e734c054 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -160,7 +160,7 @@ CHANGES IN 0.5 / 0.51
            Ingress
 - Feature: You are now alerted if some of the resources fail to load
 - Change: portal level should now stand out better against more
-          backgrouds (by jonatkins)
+          backgrounds (by jonatkins)
 - Change: increased hack range from 35m to 40m
 - Change: Sidebar now semi-transparent, just like chat (by cmrn)
 - Change: portals are now sized according to their level (by OshiHidra)
diff --git a/code/map_data_render.js b/code/map_data_render.js
index fe9d685a..e88a7a39 100644
--- a/code/map_data_render.js
+++ b/code/map_data_render.js
@@ -289,7 +289,7 @@ window.Render.prototype.createPortalEntity = function(ent) {
 //(as it's called from elsewhere - e.g. selecting/deselecting portals)
 
 //ALSO: change API for highlighters - make them return the updated style rather than directly calling setStyle on the portal marker
-//(can this be done in a backwardly-compatable way??)
+//(can this be done in a backwardly-compatible way??)
 
   var dataOptions = {
     level: portalLevel,
@@ -543,7 +543,7 @@ window.Render.prototype.resetPortalClusters = function() {
     this.portalClusters[cid].push(p.options.guid);
   }
 
-  // now, for each cluster, sort by some arbitary data (the guid will do), and display the first CLUSTER_PORTAL_LIMIT
+  // now, for each cluster, sort by some arbitrary data (the guid will do), and display the first CLUSTER_PORTAL_LIMIT
   for (var cid in this.portalClusters) {
     var c = this.portalClusters[cid];
 
diff --git a/external/KML.js b/external/KML.js
index 22659777..53828d3e 100755
--- a/external/KML.js
+++ b/external/KML.js
@@ -275,7 +275,7 @@ L.Util.extend(L.KML, {
 		var el = xml.getElementsByTagName('coordinates');
 		var coords = [];
 		for (var j = 0; j < el.length; j++) {
-			// text might span many childnodes
+			// text might span many childNodes
 			coords = coords.concat(this._read_coords(el[j]));
 		}
 		return coords;
diff --git a/plugins/basemap-cloudmade.user.js b/plugins/basemap-cloudmade.user.js
index 329cd4b8..34b584be 100644
--- a/plugins/basemap-cloudmade.user.js
+++ b/plugins/basemap-cloudmade.user.js
@@ -6,7 +6,7 @@
 
 // 1. Go to the www.cloudmade.com website and register an account
 // 2. Get an API Key
-// 3. Edit the clode below, replace YOUR_API_KEY with the API key from CloudMade.com
+// 3. Edit the code below, replace YOUR_API_KEY with the API key from CloudMade.com
 // 4. Reload the page
 // optional: browse their map styles, add/modify any you like to the cmStyles list
 
diff --git a/plugins/force-https.user.js b/plugins/force-https.user.js
index 411e1e5e..18516582 100644
--- a/plugins/force-https.user.js
+++ b/plugins/force-https.user.js
@@ -17,7 +17,7 @@
 
 
 //NOTE: plugin authors - due to the unique requirements of this plugin, it doesn't use the standard IITC
-//plugin architechure. do NOT use it as a template for other plugins
+//plugin architecture. do NOT use it as a template for other plugins
 
 
 if(window.location.protocol !== 'https:') {
diff --git a/plugins/show-more-portals.user.js b/plugins/show-more-portals.user.js
index e119affb..443e9d09 100644
--- a/plugins/show-more-portals.user.js
+++ b/plugins/show-more-portals.user.js
@@ -42,7 +42,7 @@ window.plugin.showMorePortals.setup  = function() {
     }
 
     // and, the same scale for L2+ and L3+ portals. again, forcing the level down isn't unfriendly to the servers
-    // (ditto on the cacheing)
+    // (ditto on the caching)
     if (mapZoom >= 12) {
       return 13;
     }
diff --git a/plugins/update-check.user.js b/plugins/update-check.user.js
index 3dce7390..0ad9b718 100644
--- a/plugins/update-check.user.js
+++ b/plugins/update-check.user.js
@@ -30,7 +30,7 @@ window.plugin.updateCheck.getUrl = function(callback) {
   var url = 'http://iitc.jonatkins.com/versioncheck.php'
           + '?build=@@BUILDNAME@@'
           + '&mobile='+((typeof android !== 'undefined' && android)?'1':'0')
-          + '&ts='+Date.now();  // append timestamp - ensures no cacheing of old data, even on mobile with the aggressive cache code
+          + '&ts='+Date.now();  // append timestamp - ensures no caching of old data, even on mobile with the aggressive cache code
 
   if (callback) {
     url = url + '&callback='+callback
diff --git a/website/code/apk/lib/ApkManifest.php b/website/code/apk/lib/ApkManifest.php
index 1b070dc1..d7154f08 100644
--- a/website/code/apk/lib/ApkManifest.php
+++ b/website/code/apk/lib/ApkManifest.php
@@ -126,7 +126,7 @@
         }
 
         /**
-        * Basicly string casting method.
+        * Basically string casting method.
         */
         public function __toString()
         {
diff --git a/website/page/home.php b/website/page/home.php
index 65d91930..fd9f2740 100644
--- a/website/page/home.php
+++ b/website/page/home.php
@@ -54,7 +54,7 @@ standard intel site. Changes include
 </ul>
 </p>
 <p>
-<b>3RD PARTY PLUGIN AUTHORS</b>: The plugin wrapper code has been modified to pass through the additioal version
+<b>3RD PARTY PLUGIN AUTHORS</b>: The plugin wrapper code has been modified to pass through the additional version
 information. While existing plugins should continue to work, I highly recommend updating the wrapper code in your
 scripts to match.
 </p>
diff --git a/website/page/news.php b/website/page/news.php
index 5f05ad21..3466bace 100644
--- a/website/page/news.php
+++ b/website/page/news.php
@@ -41,7 +41,7 @@ standard intel site. Changes include
 </ul>
 </p>
 <p>
-<b>3RD PARTY PLUGIN AUTHORS</b>: The plugin wrapper code has been modified to pass through the additioal version
+<b>3RD PARTY PLUGIN AUTHORS</b>: The plugin wrapper code has been modified to pass through the additional version
 information. While existing plugins should continue to work, I highly recommend updating the wrapper code in your
 scripts to match.
 </p>