If you go to Creative Common Search at
http://search.creativecommons.org/ and tick both options:
Search for works I can use for commercial purposes AND Search for works I can modify, adapt, or build upon,
Can I use the images on the search results on my blog freely? Or do I still need to:
- Contact the owner of the photo asking for a permission and
- Put a link back to the Flickr Page
Also, can I just hotlink to the Flickr image location from my blog post as well?