Show HN: A new way to like your videos and songs (partsie.com)

Hello liu3hao, looks like we are competing in a similar space (related website in my profile, I am not trying to spam your post). I like your minimalism, quite elegant. Good luck! Where are you located?

What's the test account? Clicking on the button sends me to the login page.

So, you have built a lot of interesting tools. For example, Youtube, and vimeo have usefull JS API's that you can use to interact with the their flash players, but other sites don't. The way you solved this by asking the user could be an interesting way to bootstrap the problem of not knowing how long a piece of media is.

Here is where you fell short though. I have the ability to mark part of the timeline, but then I have no idea what to do next.

This is a little bit how I felt about the whole site, I wasn't entirely sure what I was suppose to do.

Pretty cool idea. In the future I'd suggest linking to the about page first, the welcome page linked here just confused me.