Consuming Web Services Efficiently

I wrote a review article on various options provided by the Microsoft .NETFramework for making Web service calls and focus on making asynchronous Webservice calls to improve performance. Here is the link.

http://aspalliance.com/articleviewer.aspx?aId=337

The article was written in last September. It's outdated now considering the rapid progress in the area of Web services. I'm going to revisit the area and use it to warm up.