Help Community Project Development

Hello all,

I have no idea of ruby on rails and read some articles and found out
it is good, flexible, understandable and very efficient for web
applications. I am planning to start a community project and looking
for good web technology to use. Can anybody let me know the pros,
cons, performance counters, dynamic updating the website
(live), …etc of ruby on rails so that we can use it for development.
please suggest me whether it is good or not… and anyother technology
is better.

Thanks for the help!!!

Hope i will get good answers