Readmanga.com
Readmanga.com is not a huge online manga site, but it does have a ton of Full Metal Alchemist and it a very easy to use manga view that works in your Web browser (no downloading). 
Other manga here includes:
About Reading Manga Online
It’s great when you can read manga online while at your computer, mobile device and even your phone. And there are many ways you can get your favorite manga from the Internet. Check out our intro to online manga on www.read-manga-online.com.
