There is absolutely no doubt that the The Twilight Saga Collectionby Stephanie Meyers are some of the most well known works of vampire fiction in the world today. As such their omission from this website might be considered conspicuous. All I can say about this is the following:
The books on this site are all reviewed by me, based on person interest. I don't happen to be interested in reading the Twilight books. But that is a totally persona and subjective failure to be intrigue, not any kind of judgement or antipathy. Vampire fiction is such a huge body of work that no one reader is going to cover it exhaustively.
There are plenty of other sites that give good coverage of Ms Meyer's books, including the Twilight series. there are some of the most reviewed and discussed books in recent history. I doubt I could add anything of substance to this discussion. I would prefer to spend my time seeking out the more obscure and under-appreciated books rather than added to the Twilight cacophony.
That said of anyone out there feels they have something to say about these books (movies and/or other derivative works) and would like to submit a guest review, I would be happy to post it.