RESOLVED: Our homepage subscription module has been temporarily disabled, so to find those videos, you’ll need to click the “My Subscriptions” link in your account. From there, you should be able to see the latest videos from users and tags to which you’ve subscribed. Our engineers are actively working to bring this module back to you – we’ll post an update if there’s any change.
Update (6/11/2007, 2:39 PM PDT):
We 've fixed the bug that caused the Subscriptions module to disappear from the homepage. You should now be able to access your subscriptions as your normally would.