From their website:
We’re sorry to announce that we are no longer accepting uploads to Jumpcut.
We will be keeping the Jumpcut site up and running for the foreseeable future so you‘ll still be able to play, remix and share your existing movies – you just won’t be able to upload anything new.
If you’re looking for a place to upload and share your video, we recommend that you head over to Flickr: http://flickr.com/explore/video
We’re not sure how long this notice has been on the Jumpcut website, but it seems to be quite recent. In the beginning of November, Yahoo! closed live streaming service Y!Live.
Since they’re pointing people to Flickr for their videos, and say in their FAQ that they made this decision in order to ‘focus resources on other Yahoo! sites’, we’re putting Jumpcut into the deadpool even though the site will remain accessible for the time being. What seems painful for the users who have uploaded videos to the service in the past, is that they’re unable to download any of their edited videos.
Hat tip to Flickr exec Shamir Ramjan.