Frank Grimberg of Prosoft Systems International will be at CapArea.NET tonight doing a session on Forms Validation using a Web Service. This is the same session that he did at CMAP a couple of months ago. He'll cover how you can connect from the browser to a server using a web service. This allows you to create highly responsive applications that live in the browser.
The meeting starts at 7:00 at AT&T in Tyson's Corner. Another set of directions are here. Pizza will be served.