Differences between Web Services and WCF Services

.NET Framework 3.5 and higher version has introduced WCF services. Most of the time we don't know what are the advantages to use WCF services over traditional web services.

Here is very good link which talks about in-depth differences between web services and WCF services:

http://www.codeproject.com/Articles/255684/Create-and-Consume-RESTFul-Service-in-NET-Framewor

We can use two types of serialization in WCF : XmlSerializer and DataContractSerializer. Both has its own advantages-disadvantages over other.

Link for differences between XmlSerializer and DataContractSerializer :  http://www.danrigsby.com/blog/index.php/2008/03/07/xmlserializer-vs-datacontractserializer-serialization-in-wcf/