Hey there - cool blog you got going! Hope you don't mind if I use some of your content later down the road, great stuff. New follower, can you please follow me back?
No problem at all. Please feel free to share; as all my original content is released under a Creative Commons Attribution-ShareAlike 3.0 Unported License. This means you can use it any way you like, including commercially, even off Tumblr (you could publish any of my photos as illustrations in a book, tshirts, posters, anything) so long as you credit me. That’s very easy to do on Tumblr; you just need to reblog leaving the “source” intact (attribution). The main thing you can’t do is licence derivative work with a more restrictive license (share-alike). One of my objectives is raising a little awareness here, so I make sure to tag everything #Creative Commons
And of course everything from the public domain I share is free of all restrictions. Again, I’m tagging everything #Public Domain
Creative Commons helps people push back against repressive Copyright Laws like SOPA in the US and Canada’s Bill C-11 along with their evil big brothers, the trade treaties ACTA and TPP. This is especially important if we want to keep the Public Domain from being swallowed up.
And since I’m still a Tumblr noob so my policy is generally follow-back.