Hi Guys,

I'm doing a language web site for my university language center, where students login and see videos to learn English. i have to do it like this,

person is logging in to the system, search using a search area and find the details,lessons and videos relevant to that videos. this functionality exactly matches the youtube scenario.

for implementing twitter like functionality we can use status-net, is there a similer library, statusnet like famous implementation for youtube or a some kind of platform or a framework like codeigniter that we can use to implement youtube like site very easily?? please suggest some options?? a open source one or a commercial one ???

and what is the best video format to use in a such web site?? flv?? mp4?? or mov???

regards, Rangana