I have an asp.net mvc application and now I need to add a web service to go along with it. What is the best solution for this? Just create a new web service project and add it
If you want to use a regular ASP.NET asmx web service, it's certainly possible. Here's an example from Scott Hanselman that does just what you are asking about and it throws in some other ASP.NET technologies for good measure.
All you have to do is File -> New Item -> Web Service and it should work like a regular ASP.NET application in your Mvc project.