If you use Expressions Web 3, check out a link list by Expression Web MVP Minal where she has written some useful Expression Web 3 tips and tricks
Here’s an excerpt
Microsoft Expression Web is a ’WYSIWYG’ HTML editor as well as a graphical web design program developed by Microsoft that has today replaced Microsoft FrontPage. Expression Web is a part of the Expression Studio suite. Expression Web provides support for integrating XML, XHTML, XSLT, CSS, ASP.NET and other standard Web technologies into the websites.
I have been using Microsoft Expression Web 2 for quite some time now and I love it! Now with release of Expression Web 3, with features like SuperPreview, Snapshot Panel, new improved toolbars like the Code Toolbar, integration with VSTS, Silverlight support and an enhanced FTP client, you get a better control over your web pages. Believe me, designing has never been so simple and interesting before.