The Tomorrow Series - John Marsden

This is a series of seven novels. Set in Australia, it is about a group of young people who go away on a camping trip and upon their return to "civilization" realize that their country has been invaded, homes seized or destroyed, and families imprisoned. I liked it because it deals with relationships of all kinds, with moral decisions, with loyalty and duty under stressful circumstances. John Marsden has a website....
Novels in the series include: Tomorrow when the world began, The Dead of Night, Killing Frost, Darkness Be My Friend, Night is For Hunting, The Other Side of Dawn, Burning for Revenge

The Blue Bloods Series - Melissa de la Cruz

The Blue Bloods Series is, as the title suggests, about Vampires, and like the Cassandra Clare series, it too is set in New York. Once again, I liked this series better than Twilight because it is not all about following your heart to the guy of your dreams, rather about friendship and morality. Melissa de la Cruz has a website where you can read the first chapter...but beware, you could be bitten and need to read the rest....
Novels in the series include: Blue Bloods, Masquerade, Revelations, The Van Alen Legacy (Due out in October 2009)

The Host - Stephenie Meyer

This novel, set in the future, is about a group of young people who have escaped the notice of extraterrestrials who have populated the earth. Stephenie Meyer's storytelling is at its finest here. Despite the fact that I am not a fan of Sci-Fi, I actually enjoyed this novel more than the much hyped Twilight series.

Twilight Series - Stephenie Meyer

Enough has been written about these novels, so I will not go into any detail concerning their contents. Instead, I will give you my opinion. These novels are a fun and easy read. They are about Vampires, but more importantly they are about relationships. As a feminist, I really don't like the idea of "giving everything up for a guy" but as a romantic, it is sweet to see such idealized emotion...
Novels in this series include: Twilight, New Moon, Eclipse, Breaking Dawn

The Mortal Instruments Trilogy - Cassandra Clare

This is a trilogy of novels for young people who like to read as each novel is long. Yes, it is about Vampires.... Similar to the Stephenie Meyer's Twilight Series, this Trilogy is about some otherworlders living in America. However, these vampires do not live on the rural west coast but are urban New Yorkers. The author has a terrific website with information about the novels as well as information about a new series that she is currently writing which is set in London. Check it out...just google Cassandra Clare.
The series includes: City of Ashes, City of Bones, City of Glass