[via Joi Ito, 1] Google added an Open Content resp. public domain relevant search option called \”Usage Rights\” to their Advanced Search form (the option is currently not available in German) . There are three options for the selection \”as_rights\”:
- aren\’t filtered by license
- allow some forms of re-use
- can be freely modified, adapted or built upon
The appropriate option values are:
As Joi Ito already mentioned, Yahoo! has added easy to use check boxes. I agree that the Google search form could be more userfriendly. If I try to build a custom query string, the search results are actually but not obviously \”as_rights\” relevant .