WWW and web browsers

Tim Berners Lee invented the World Wide Web while working at CERN to provide a way to organize information among the reaserchers. He also invented the first web browser which was called WorldWideWeb (note there is no space in between) and later changed its name to Nexus. Interestingly, Nexus had WYSIWYG capabilities and it was supposed to be a platform to read as well as edit information. But some how the next generation of web browsers shifted to read-only mode.
Now we have websites like wikipedia and digg which have both read and write capabilities, which was one of the fundamental purposes of creating the world wide web and the browser.
This link takes you to a wikipedia webpage which shows a list of web browsers organized into categories.
Do add any valid web browser you think is missing and most importantly, do organize the browsers according to a category called "WYSIWYG". For example, Nexus had WYSIWYG features. Because the whole purpose of creating the web was not just to publish content from the server side but to also edit/add content from the client side.