涼宮ハルヒ
http://www.haruhi.tv/
http://lantis-net.com/haruhi/
Its based on a novel thats serialized in the seinen(young men's) novel magazine
The Sneaker.
A manga based on the novel is serialized in the shounen manga magazine
Shounen Ace.
Genre: Seinen, Comedy
Edit:
Suzumiya Haruhi is originally a novel thats serialized in the seinen(young men's) novel magazine
The Sneaker (the same magazine that serialized the seinen novel Trinity Blood).
For now there are 8 volumes released of this novel, here are the covers:
The illustrator of the novel is
Itou Noiji (the same illustrator of the seinen novel Shakugan no SHANA)
A manga based on the novel is serialized in the shounen manga magazine
Shounen Ace.
There is 1 volume released of this manga, here are the covers:
This manga got cancelled (read this page of this thread to find why).
A new
Suzumiya Haruhi manga is serialized in
Shounen Ace magazine.
For now there are 2 volumes released of this new manga, here are the covers:
Genre: Seinen, Comedy.