I discovered
this blog (<----- clicky) a few months ago (before my in-laws started being problematic) written by a woman with terrible in-laws. She has nicknamed them Sly and Doris, and she catalogues their escapades here. Although, since she's managed to limit contact with them, her later posts cover a lot of her past experiences with family and dating and such. She is an extremely funny writer, and I now find the blog to be a bit cathartic. If you want to read the wedding related things, start with the oldest posts (2010).
In related news, the FILs are now planning on not attending the reception or the rehearsal dinner. I've decided not to care.