These things usually have passed around the internet several times before it gets to the meme aggregators, I wish there was a better solution than watermarking.

These things usually have passed around the internet several times before it gets to the meme aggregators, I wish there was a better solution than watermarking. Tineye/GIS would theoretically work, but it'd find every instance where the meme was passed around, not its origin! Do you have a suggesting for finding each "owner"? Such requirements would shut down all these sites (not that we'd have a huge loss by doing so, but I'd like to think that a social/technological solution would be possible.)