by Sue Beckingham
"Google Search has finally added a simple way to search for images that have reuse rights!
First of all enter your search keyword, then click on Images. You will then see Search tools. Select this and it reveals Usage Rights with a drop down menu. The default is ‘not filtered by licence’. You can then choose one of four further options:
labelled for reuselabelled for commercial reuselabelled for reuse with modificationlabelled for commercial reuse with modification
Check the best match and you will then only see the images that have those rights."
Via Jim Lerman