What are the best uses of REST services?

Question

I know sites like Facebook are now using REST services, but I am wondering of other applications that use REST and if there are specific situations when the use of REST is more

Answer 1

REST is efficient when your ultimate goal of the data is the CRUD operations, usually within a web UI, usually with AJAX, Flash, Silverlight kind of experiences, when security, encryption, transactions are not the concern, however if your requirements includes any enterprise like features mentioned before (Transactions, Encryption, Interoperability ... etc) SOAP is the solution.