It's completed online.
No, it is still ongoing.
Yes, Samurai Champloo is a manga and anime.
Some good samurai manga would be, Samurai Champloo rurouni kenshin Inuyasha(not so much about a samurai but has basically the same feel to it)
There is a manga series for 358/2 and it is probably not finished it is ongoing as i last read it on mango ( A manga app for smart phones ) and for birth by sleep there is no manga but i hope there is one coming soon! :D
Action -The Breaker -Code : Breaker -Gamaran -Samurai Deeper Kyo -Rurouni Kenshin -Bloody Monday Romance/Comedy -Suzuka -Sora No Otoshimono
Yes, it is.
Unfortunately Yes :( They don't have enough staff to scan and translate it, so its going to take a long time before its complete it :(
Rosario to Vampire was completed a few years back.. And then they came up with a Rosario to Vampire II, which is still ongoing and picks up where the ending of Rosario to Vampire left off...
Tite Kubo has created several manga including Bleach, which is ongoing, and Zombie Powder which was never completed. He also started several manga before that which never got officialy published, including Runemaster Durara and ultra holy punk hearted machine.
The manga hasn't stopped yet, but to the date of 11/26/2011, the manga is still ongoing.
Yes, the manga "D.Gray-man" is ongoing. The series is still being serialized in Japan, with periodic releases of new chapters.
Yes, it is still ongoing.