Video sharing site and SEO?

[Stefan]

Hello, me and few friends build a website for a specific kind of videos. We have done keyword research and people are interested in those videos, but they are hard to find across the web so we search for them in YouTube and other sites and we embed them at our. The idea of the page is to be something like collection of all those videos.But whateva the main question is that we can't rank on Google by the keywords that we target because the page`s content is low and maybe not "unique". So any ideas how we can improve the ranking in SEPRS? We have title attributes Alt text and everything else that Google Webmaster Guidliness says but so far 4 months no results from Google. Thank you.