For their special celebration issue Thor #600, Marvel wanted to create a cover gallery of all past issues. As they didn't have all covers handy, a Marvel employee asked me if I could send them all of the Thor issues shown on Cover Browser, and of course it was an honor to do so!

Update: Cover Browser was now also mentioned in Captain America #600, which had a cover gallery as well!

Also, Cover Browser was featured in Incredible Hulk #600 and (I still have to confirm that) Daredevil #500!