"One of these things is not like the others..."

I don't even pretend to understand how Facebook tracks the things I do or like or how the algorithms are created.  But a colleague put a picture on their FB wall and I liked the sentiment and I like the lady so I liked the picture.

Once I did, I was invited to like these things that were "similar"....Now I don't know a whole lot about MacFarlane....maybe he is a big supporter of autism research or what not, but something didn't seem right about this....