http://anymanga.com/ranma :)
mangago.com
No, Ranma and Akane never 'officially' get married, but the closest they come to is in the last volume of the manga when they do get ready to do so :). The manga brings more closure with the two characters than the Anime did, so I suggest to read it because of Ranma's final HUGE love confession in the last volume :).
final chapter Ranma & Akane
No sex scene, just a lot of shots of nudity, and some suggestive hints.
The DVD was out in Japan last January 29 2010, people have uploaded it on youtube february 7 or something :D too bad there are no English dubs of it out yet, only fan subs or the official subs are out
If you mean read it online bleachexile.com
I read some where it comes out in Japan on January 2010, so we'll have to wait for someone to put it on Youtube or online.
you can read it on the internet under 'Ranma Manga'
You can read Ranma and Shampoo fanfiction on websites like FanFiction.net and Archive of Our Own (AO3). These platforms have a wide range of fanfiction stories based on various characters and pairings from the Ranma ½ series.
That is OVA (original video animation) Its Ranma OVA episode 12
you can read all the Manga's here for free: http://www.mangafox.com/page/manga/series/72/ranma_1_2/
No.
go to Jack243's channel on youtube he has every Ranma 1/2 episode and movie
# go to gofish.com and it is self explanitory from there
you can go on youtube and type in "Ranma 2x12" Well, youtube is now deleting all the animes, so I'll recomend veoh.com... more episodes are available if you download veohtv (free). Type in ranma 1/2 episode 12 season 2 or ranma 1/2 S2 Ep12.
The duration of Ranma ½ is 1.08 hours.
There are three Ranma 1/2 movies with one OAV : 1) Ranma ½: Big Trouble in Nekonron, China , 2) Ranma ½: Nihao My Concubine , 3) Ranma ½: One Flew Over the Kuno's Nest and 4) Ranma ½ OAV .