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A screenshot would do wonders for the conversion rate on that homepage.

It pretty much looks like a browser. It's not the looks, but the works that make it interesting; you don't look at it and say, "That looks like it would intelligently employ keybindings similar to Emacs! Look at that extensibility!"

then it needs a screencast that also shows what is being typed.

or a list of strings of what was typed next to high-level descriptions of the actions achieved.

reading down the whole page, the "using" section has 30 links but not a single summary to make me care to click.

Any screenshot of the browser conveys very clearly that "That looks like it would intelligently employ keybindings similar to Emacs!". See the screenshot on wikipedia https://en.wikipedia.org/wiki/File:Conkeror_web_browser.png

The lack of buttons and address bar tells you exactly what kind of browser it is and that you should expect it to share many features with things like uzbl and vimperator.

In addition a screenshot like http://www.linuxjournal.com/files/linuxjournal.com/linuxjour... shows you a lot about the navigation tools they have provided.

A browser is a visual tool and many of its distinguishing features are thus much more difficult to explain with words.

Same for text editors

http://www.jesshamrick.com/images/emacs/emacs-welcome.png

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