Search for commercially reusable content under Creative Commons

There are tons of "pages that are free to use or share, even commercially", findable by a search offered by Creative Commons.

On the page linked above, tabbed browsing metaphor gets used in a misleading manner: One might expect clicking on any of the tabs results in a search entry field below the series of tabs. But that's not the case. The tabs, apparently, became tabs only by accident.

Instead, the interesting part of the story begins when choosing a tab, then forgetting the tabbed browsing metaphor and use the one-liner text entry field at the top of the page.

There you enter the thing your looking for. Then, the search gets performed by the search tool you choosed before by selecting that "tab". And then, after you get the results of your search, the tabs suddenly make sense: The results appear the tab you chose. And clicking to any alternative tab results in quickly asking the matching search engine for a search, and the search results get displayed in the "tabbed area" also. Just as expected. Only the initial part is confusing.
 

However, that results in the conclusion this blog has achieved its goal yet: Although manually I found only less than a dozen sources yet, the search engine site reveals "all the rest" (of course, not all of the rest, but a big-number share of it).
 

Hence, now, I can narrow what to search for. Pick only sources that relate to local issues, look for pictures or text only, maybe entertainment audio files or local even podcasts, and last not least, for sources in a non-foreign language, as that might appeal local 'strangers' most. -- Or, I could go ahead and see which sources might look credible and which don't.

      
Updates: none so far