the one you have just finished. Also great for finding read-alikes.
Teenreads Ultimate Reading List : Over 400 titles, updated yearly, including fiction, non-fiction, graphic novels and manga.
Noflyingnotights : Reviews graphic novels and manga with daily updates.
Guys Listen : Audiobook recommendations by Jon Scieszka.
Book reviews and book trailers on YouTube: here are some great examples, shown on the Tuesday morning announcements at WWSR: