The Sum of All Fears question

I used to use AuthorAlerts.com to track my favorite authors and know when they have a new book coming out. The last few times I have tried to use the site, all my authors show no new books and no recent books. I know this is wrong.

Does anyone 1) know anything about this website and 2) know of any other websites to track upcoming books by authors. I read thrillers, primarily.

Thanks.