WYSIWYG Open Source website developing Tools

Every body who is in web development knows about the adobe Dreamweaver, recently clubbed with adobe CS3. It is an expensive piece of software to own unless you bread and butter is web development. But here I will mention some relatively less known software's, First one i can think of is Komposer. It is released under the GPL license. It was built as enhancement and bug fixed release to “Nvu”. Nvu is now out of production and not being developed further. The development is also slow on Komposer but still a good tool. Some of the features are:

• Very light as compared to other commercial .
• Built-in FTP .
• CSS Editor.

The version is far from being a professional development tool (as stated on their own site) but if you are working on your on website and have just some thing small and want to maintain it at minimal possible cost the Komposer is the choice of tool. The three tabs at the bottom let you switch between the WYSIWYG view, HTML view, and Tag view.
Another WYSIWYG tool available is "Amaya" from W3C consortium. It is a more feature rich tool. it follows strict XHTML standards. It should be a very good web authoring tool for faculty and researches as it natively supports MathML, Scalable Vector Graphics (SVG), and collaboration via shared metadata based Web annotations, bookmarks, and their combinations(Annotea). This a step forward in sementic web development and Resource Description Framework(RDF). The CSS support is much more enhanced. This is a really good tool, and helps create sites which are simple, powerfull, and standards compliant. few other tools available are SeaMonkey Composer (Mozilla Composer) and Trellian.