Web services:
Web Services is Nothing But it is a BusinessLogic Componet.it can be Access By Using HTTP Protocole .In that Web Services Main Protocol is the SOAP(Simple Object access Protocol).
1.Web Services is the Stateless Protocole.
2.It can Be Access Only one Protocole (http).
Remoting:
It is the State Management .
2. It can be Access the D/f Protocole like a TCP, HTTP,FTp etc.
3.Main is the Singletone,single Call class.
 
Thanks,
Narasimma