I love this: Inconsistencies in the Sweet Valley High books.
Some are less inconsistencies than just stupid things, such as "After Tricia Martin dies, there are TWO different books with a sub-plot of a girl looking exactly like Tricia Martin that Steve falls in love with - how can there be three (unrelated) girls that all look identical in one town?"
Here's a great one: "Shall I point out the obvious “Olivia coming back from the dead” in the early SVU book where they have a high school reunion about 5 months after they graduate? I know that was written before the Earthquake books, but maybe choose some other character to kill, one that DIDN’T show up at the reunion…"
Makes me want to dig out my book o' books from the basement...