As a first impression from viewing the site, I didn't understand what it was offering. It mentions social sharing, but it wasn't until I read over the copy a few times that I actually understood that your service will takes new content from a website and post links to that content on social media sites and newsletters. I agree with what other people are saying, try to make it clearer what you're offering.
That's true. I think another way the video distinguishes good projects from bad ones it that it takes planning to make a good video. It's not something that just happens overnight, and the projects that take the time to plan out a great video also tend to be projects that planned out a great product/marketing plan.
Wow, that's a great Kickstarter page. Really polished pictures and interesting descriptions. Not too much text either. They let their product do the talking.
One of the things I underestimated with mine was how important it is to not only have a video, but to make it look professional. I think the video is where products either shine or are tossed into the "mediocre" category in a potential backers mind.
I've found that building a relationship is crucial. I think a company blog can help with that a lot. If you're already publishing things, commenting on others' blogs and getting your name out there, bloggers are going to be much more receptive to you.
If you don't have time for all that though, targeting bloggers whose readers would be interested in your product is great. It's a win-win for both of you.