Beth Revis is not only a great author but a very generous person as well. She is able and willing to host a giveaway of nearly 50... yes, fifty, books. And not just 50 books, but fifty signed books. For real. How amazing is that? Pretty freaking awesome.
One of the ways to get entries is to post about why you love YA. And if you look at my Goodreads you'll see I read a lot more YA than others. Sometimes I wonder why, but mostly not. I don't pick the books based on what age they are geared toward, I just tend to fall in love with the ones in YA. They feel more real to me (despite the sometimes not-real aspect of the stories). The characters are accessible, real, raw, and I find myself loving their innocence and coming of age (ech... I hate that phrase but couldn't come up with another at the moment). It doesn't matter if the authors are teens themselves, as most are not, but they bring such a realness to the characters they may as well be.
Most of my favorite authors are Young Adult authors:
Kami Garcia & Margaret Stohl
Just to name a few. :)
Anyway, you should definitely check out Beth's blog about the contest, and while you're at it, you can learn more about her.