I'm a fan of namevine. I use it when I'm brainstorming projects or figuring out names.
As for a pro feature - I think that notification when something becomes available or a domain/account marketplace might be useful.
As for a pro feature - I think that notification when something becomes available or a domain/account marketplace might be useful.
What would be an example of the notification you're thinking of here? Like domains matching a keyword? Or a specific one?
The idea of a marketplace definitely does make sense. Were you thinking as a buyer or seller?