I came across this blog by chance while surfing the web. Basically, someone has been spending the last couple of years tracking down examples of comic book swipes, which seem to be almost exclusively Rich Buckler swiping from Jack Kirby.
I always knew Buckler was a Kirby clone, but the level of swiping being exposed in this blog is staggering. There are literally hundreds of examples - they just go on and on.
If you have an hour or so to spare, just dip in and keep going. You won't believe the scale of what Buckler was getting away with during his FF run in the mid-70's.