After scrolling down in an email received from Springer, I stumbled across an image that looks undoubtedly similar to the Academia StackExchange logo. I made my little investigation, and found it again on the Springer Shop website.
When the site was still in beta, this post was created to discuss the future design. From what I know, this is where our logo comes from. Since I don't know if either our logo or their image is copyrighted (and have no legal knowledge anyway), I just wanted to highlight this (possible) issue to the community.
I know this is not much of a StackExchange question, but are the mods aware about this? If problematical, I do believe that this situation must be sorted as soon as possible.