Users coming from cuil.com are registered as coming from an external page, rather than coming from a search engine.
Keywords: cuil, search engine
would you mind submit the CUIL icon here
like the ones in http://piwik.org/demo/plugins/Referers/images/searchEngines/
Keep in mind: "Our Cuil sites, including our search technology, website designs, name and logos, are our protected intellectual property."
Given "fair use" provisions vary between jurisdictions, it might be prudent if Piwik excludes potentially infringing icons from the distribution. As an extra step, users could be given a web page or plugin that downloads the icons (given a list of URLs) for their installation.
added search engine in the list, no favicon (nobody is using cuil anyway right? ;-)
fixed in