diff --git a/doc/api/debugger.markdown b/doc/api/debugger.markdown
index 1d37df8d254..0bbfeab2164 100644
--- a/doc/api/debugger.markdown
+++ b/doc/api/debugger.markdown
@@ -1,6 +1,6 @@
 ## Debugger
 
-V8 comes with an extensive debugger which is accessable out-of-process via a
+V8 comes with an extensive debugger which is accessible out-of-process via a
 simple [TCP protocol](http://code.google.com/p/v8/wiki/DebuggerProtocol).
 Node has a built-in client for this debugger. To use this, start Node with the
 `debug` argument; a prompt will appear:
diff --git a/doc/api/dns.markdown b/doc/api/dns.markdown
index fc9765589ee..56021f305d7 100644
--- a/doc/api/dns.markdown
+++ b/doc/api/dns.markdown
@@ -33,7 +33,7 @@ AAAA (IPv6) record.
 The callback has arguments `(err, address, family)`.  The `address` argument
 is a string representation of a IP v4 or v6 address. The `family` argument
 is either the integer 4 or 6 and denotes the family of `address` (not
-neccessarily the value initially passed to `lookup`).
+necessarily the value initially passed to `lookup`).
 
 
 ### dns.resolve(domain, rrtype='A', callback)
diff --git a/doc/api/http.markdown b/doc/api/http.markdown
index 6f68eeb28e2..8de8dcaad5c 100644
--- a/doc/api/http.markdown
+++ b/doc/api/http.markdown
@@ -267,7 +267,7 @@ implicit/mutable headers will be calculated and call this function for you.
 ### response.statusCode
 
 When using implicit headers (not calling `response.writeHead()` explicitly), this property
-controlls the status code that will be send to the client when the headers get
+controls the status code that will be send to the client when the headers get
 flushed.
 
 Example:
@@ -368,7 +368,7 @@ Options:
 
 - `host`: A domain name or IP address of the server to issue the request to.
 - `port`: Port of remote server.
-- `method`: A string specifing the HTTP request method. Possible values:
+- `method`: A string specifying the HTTP request method. Possible values:
   `'GET'` (default), `'POST'`, `'PUT'`, and `'DELETE'`.
 - `path`: Request path. Should include query string and fragments if any.
    E.G. `'/index.html?page=12'`
@@ -424,7 +424,7 @@ There are a few special headers that should be noted.
 ## http.get(options, callback)
 
 Since most requests are GET requests without bodies, Node provides this
-convience method. The only difference between this method and `http.request()` is
+convenience method. The only difference between this method and `http.request()` is
 that it sets the method to GET and calls `req.end()` automatically.
 
 Example:
@@ -474,7 +474,7 @@ By default set to 5. Determines how many concurrent sockets the agent can have o
 
 ### agent.sockets
 
-An array of sockets currently inuse by the Agent. Do not modify.
+An array of sockets currently in use by the Agent. Do not modify.
 
 ### agent.queue
 
diff --git a/doc/api/modules.markdown b/doc/api/modules.markdown
index 55e2fdc114c..5f2b747eec3 100644
--- a/doc/api/modules.markdown
+++ b/doc/api/modules.markdown
@@ -95,7 +95,7 @@ First, `/node_modules` is never appended to a folder already ending in
 `/node_modules`.
 
 Second, if the file calling `require()` is already inside a `node_modules`
-heirarchy, then the top-most `node_modules` folder is treated as the
+hierarchy, then the top-most `node_modules` folder is treated as the
 root of the search tree.
 
 For example, if the file at
diff --git a/doc/api/net.markdown b/doc/api/net.markdown
index bcb2c96d69b..6c67666b0e5 100644
--- a/doc/api/net.markdown
+++ b/doc/api/net.markdown
@@ -170,7 +170,7 @@ socket is established. If there is a problem connecting, the `'connect'`
 event will not be emitted, the `'error'` event will be emitted with
 the exception.
 
-The `callback` paramenter will be added as an listener for the 'connect'
+The `callback` parameter will be added as an listener for the 'connect'
 event.
 
 
diff --git a/doc/api/streams.markdown b/doc/api/streams.markdown
index 0fc4aadf3b8..83ad59b7fed 100644
--- a/doc/api/streams.markdown
+++ b/doc/api/streams.markdown
@@ -47,7 +47,7 @@ support this functionality; all others will simply never emit this event.
 ### stream.readable
 
 A boolean that is `true` by default, but turns `false` after an `'error'`
-occured, the stream came to an `'end'`, or `destroy()` was called.
+occurred, the stream came to an `'end'`, or `destroy()` was called.
 
 ### stream.setEncoding(encoding)
 Makes the data event emit a string instead of a `Buffer`. `encoding` can be
diff --git a/doc/api/tls.markdown b/doc/api/tls.markdown
index d9aec2a73c7..fd1b2330fc8 100644
--- a/doc/api/tls.markdown
+++ b/doc/api/tls.markdown
@@ -112,7 +112,7 @@ handshaked. The argument is a duplex instance of `stream.Stream`. It has all
 the common stream methods and events.
 
 `cleartextStream.authorized` is a boolean value which indicates if the
-client has verified by one of the supplied cerificate authorities for the
+client has verified by one of the supplied certificate authorities for the
 server. If `cleartextStream.authorized` is false, then
 `cleartextStream.authorizationError` is set to describe how authorization
 failed. Implied but worth mentioning: depending on the settings of the TLS
diff --git a/doc/api/tty.markdown b/doc/api/tty.markdown
index 83cad064b2f..5ec5ee1538f 100644
--- a/doc/api/tty.markdown
+++ b/doc/api/tty.markdown
@@ -34,7 +34,7 @@ terminal.
 
 ### tty.setRawMode(mode)
 
-`mode` should be `true` or `false`. This sets the properies of the current
+`mode` should be `true` or `false`. This sets the properties of the current
 process's stdin fd to act either as a raw device or default.
 
 
diff --git a/doc/v0.4_announcement.html b/doc/v0.4_announcement.html
index 21ce781024d..2aa2259bf77 100644
--- a/doc/v0.4_announcement.html
+++ b/doc/v0.4_announcement.html
@@ -31,7 +31,7 @@
       <code>Stream.prototype.pipe()</code> method. Functionality was
       enhanced and API simplified.
 
-      <li>Simplier HTTP client API with connection pools.
+      <li>Simpler HTTP client API with connection pools.
 
       <li> Cheaper <code>Buffer</code> allocation. Node uses
       <code>Buffer</code> objects in many places - it was noticed that they