Hey, some small corrections:
[quote name='Aichan' timestamp='1358812827' post='78548']
/!\ You are limited (by default) to 12 sockets per webinterface
[/quote]
Actually its only 10 by default
[quote name='Aichan' timestamp='1358812827' post='78548']
socket.subscribeEvent(String handle, String event)
- Don't know what it is (Will edit when I know)
[/quote]
it actually enables you to receive events, i highly recommend to do [code]socket.subscribeEvent(handle, "text")[code] for every new connection unless you only want to send data.
[quote name='Aichan' timestamp='1358812827' post='78548']
socket.connect(String handle, String ip, int port, bool SSL)
- Connects to a listening socket (So basically you are the client and you connect to a server).
- The handle is the same as the one you registered using registerHandle(String handle)
- The ip is the destination socket's adress (I.E : 173.194.78.94 (One of Google's servers))
- The port is the destination socket's listening port (If we want to connect to the webserver we'd say "80")
- The SSL bool isn't doing anything at the moment you can give him FALSE
[CODE][size=4]socket.[/size]connect("MySocket", "173.194.78.94", "80", "false")[/CODE]
[/quote]
[code]socket.connect("MySocket", "173.194.78.94", 80, false)[/code] works now too.
[quote name='Aichan' timestamp='1358812827' post='78548']

socket.writeLine(String Handle, String content)
- Sends "content" through the socket identified by "Handle"
[CODE]socket.writeLine("MySocket", "Hey, socket is working !")[/CODE]

Note 1 : : All the methods return values depending on errors
[CODE]
ERR_CONNECTED = -1   Already connected
ERR_NOT_CONNECTED = -2   No Connection etablished
ERR_INVALID_HANDLE = -3   Handle not registered
ERR_WRONG_OWNER = -4   Currently unused
ERR_UNKNOWN_HOST = -5   Can't connect because host not avaible
ERR_CANT_CONNECT = -6   Other connection error
ERR_UNKNOWN = -7   Unknown error occured
ERR_INSUFFICANT_ARGS = -8   Wrong param number passed
[/CODE]
[/quote]
Every function now returns this number as first and a describing String as second number.
[quote name='Aichan' timestamp='1358812827' post='78548']

Note 2 : All the args have to be string (Even for "int port" and "bool SSL") It is a known issue and will be fixed
[/quote]
This piece of information is outdated. It still support string arguments for backwards compatibility but integers and booleans now work too
[quote name='Aichan' timestamp='1358812827' post='78548']

How do we read what is sent through the socket? What method?

To read a socket, we do something a little bit different, we listen to triggered events.
Different events are pulled by the peripheral here is a list I'll complete when I'll know them all :
[CODE]
"socket_line_received"   Tells you a line has been received through the socket
[/CODE]
[/quote]
In order to get This event you need to subscribe to the text event first. See above
[quote name='Aichan' timestamp='1358812827' post='78548']
[CODE]
"socket_remote_closed"   Tells you the socket has been remotely closed
[/CODE]

And here's a little example on how to read :
[CODE]

-- Waits for a line to be received
local function readLine()
  while true do
    e, p1, p2 = os.pullEvent()
    if e == "socket_line_received" then
      return p2
    elseif e == "socket_remote_closed" then
      return nil
    end
  end
end
[/CODE]
[/quote]
Also it appears you copied quite a lot from my wiki :P - well its not updated yet so use this thread as reference :P