I have the following suggestion:
Allow users to create UserCSS and UserJS specifically for the Web Panel. This way, the readability and look of the pages in the small space provided by the web panel can be enhanced. I envision users sharing their scripts and stylesheets, rating them etc.
Maybe a UserCSS could be like this:
display:none; rule for everything on that page, which doesn’t add to the content one wants to read in the web panel
font-size:<size>; rule for the content one wants to read in the web panel
Maybe also adding RSS Feed support would be a great idea.