Asalam alaykum,
a small suggestion: duckduckgo only has one logo and that is the white duck inside the red circle. It's good branding but for site owners who wish to support duckduckgo, it provides an extremely limited "link icon". Check out the duckduckgo link
here for a user-designed example: doesn't it make sense to have more variety to fit the different feel of different sites?
Firefox has zillions of images you can download and muck round with to use as icon-links; an icon-link is the most visible yet least intrusive way of supporting a site, search engine, browser, project or program. I think duckduckgo needs to provide an online space for all those fledgling designers out there who can - and will if given the change - develop wicked icons and upload them for the global audience.
What do you think?