Your official information source from the .NET Web Development and Tools group at Microsoft.
Back in December 2006, Microsoft released Expression Web, a designer tool that's a great companion to Visual Web Developer and Visual Studio. You can read about this tool in this earlier blog post that we had made. Since then, we have received a ton of feedback asking why this as well as Expression Blend are not included in MSDN. As a result of this feedback, the Expression team announced last week that both Expression Web and Expression Blend will be available as part of MSDN Premium. We are excited about this announcement and believe that this will be a huge win for web development teams that include both designers and developers. There's already good workflow between the Expression and Visual Studio brands of products and the workflow is only going to get much better over time. What's more, the same designer component is used in both Expression Web and Visual Web Developer Orcas, so the user experience in the two products will be similar.
For more details on the Expression announcement, you can read Somasegar's blog post regarding this.
"...the same designer component is used in both Expression Web and Visual Web Developer..."
Actually, no, it's not. It's used in the previews of the next Visual Studio.
Good point Mike. I've edited the post to say "Visual Studio Orcas" that helps clarify this point.
Microsoft WebExpression is a very good tool. Do you know any tools for asp.net 1.1 just like micosoft web expression
No unfortunately there isn't a Microsoft designer tool for ASP.NET 1.1 similar to Microsoft Expression Web for ASP.NET 2.0. There is minimal ASP.NET support in FrontPage 2003, but it is certainly not as extensive as the support in Microsoft Expression Web.
Hope that helps.