Creating a web service for an InfoPath

Creating a web service for an InfoPath form in 25 easy steps
http://blogs.msdn.com/philoj/archive/2005/11/08/490200.aspx

Developing InfoPath Forms for Anonymous Access
http://www.paylasimnoktasi.com/en/anonymousinfopathforms.aspx

All About SharePoint - S.S. Ahmed - MVP Microsoft SharePoint
http://www.sharepointblogs.com/ssa/default.aspx

Programmatically create an InfoPath form from scratch using a Console application and C# code
http://enterprise-solutions.swits.net/infopath2007/programmatically-create-infopath-form-console-app.htm