Finding a wonderful and FREE Web Editor for Linux and Windows platforms is not so simple... when, 5 days ago, there was the announce of NVU, the new free web editor sponsored by Linspire and based on Mozilla Internet technology and Netscape Composer, I was really attract and I've decided to give it a brief look.
Really impressive... the tool is really fast and responsive (it's based on Gecko, the layout engine inside Mozilla) and I was totally surprised that a tool so powerful (totally comparable to Microsoft Frontpage) is 100% open source. Great! 
Some features?
WYSIWYG editing of pages, making web creation as easy as typing a letter with your word processor.
Integrated file management via FTP. Simply login to your web site and navigate through your files, editing web pages on the fly, directly from your site.
.
Reliable HTML code creation that will work with all of today's most popular browsers.
Jump between WYSIWYG Editing Mode and HTML using tabs.
Tabbed editing to make working on multiple pages a snap.
Powerful support for forms, tables, and templates.
A recommended tool to download and try... absolutely the best out for Web Design under Linux platform. Don't forget it.