You need do some homework to get a successful campaign off. You need to create a lot of buzz. On forums twitter, youtube, and other social platforms.
There's a tutorial posted here:
I would definitely google it. There are a lot of articles out there from sites like Gamasutra.
Currently, Crowdfunder, in my opinion, is a better option. You get to keep most of the money if you don't reach your goal and it's been very good to indie game projects.
There are a lot of videos too like here on youtube:
Hope this helps get you started.