parano

Some good points, some odd ones (why would you really need a hierarchy of groups inside of other groups?), but the interface part is mostly wrong/exists already.

I just looked at it and I can't find an interface to re-organize my current list of friends in Lists.

Account->Edit Friends, each friend has "Edit Lists" next to them on hover

I also can't find a way to filter the messages only from people in a certain list

Click the arrow beside Most Recent on the News Feed, then you can filter by any list

Lists also have the same problem as groups, they are categories for people, meaning that one person can only belong in one List

One person can belong in as many lists as you want them to

And when posting a message on your wall, is there even an option for posting only to a certain list, as I can't see it.

Click the lock beside the share button -> Custom edit -> Specific People -> Type whatever lists you want

Untag x 5, remove friend - crisis averted.

Yahoo cares about products that make revenue, which is why it is dropping things like delicious. I think Groupon would have had a different priority within the company.

I'm curious - do you have any data supporting this? I see it on HN based on anecdotal evidence (or none) all the time. It would obviously have different effects on different market segments, but I would love to see some analysis on this.

Completely ignores fookyong's point. Do any of the sites you mentioned have 250+ million people using it every day?

No, that's why I have my email visible to friends.

However, that doesn't mean I give them permission to easily mass import it through Facebook to whatever *Ville app is popular that day. If they allowed email export, my email is very quickly being hidden.

#2 is a fair point, but I think you have it reversed on #1 and #3. You are a cool company _because_ you're young, game changing and have an audience, not the other way around.

#4 is a property of most young companies regardless of their popularity.

Why would being "the new cool kid" affect job satisfaction ratings by employees? Unless you're suggesting they are more satisfied due to the coolness of the idea of working there.

Stable != interesting