A chatroom in limewire would almost be like, a gateway of sorts. Not only could u chat with other users in the room, but you could also find users with similar interests in music, movies, etc.., which might make searching a little more versatile. Say that u see bObO321000, he likes the music u do, not only could you find the music u know, but also stumble across a band you never heard, but like now that you did. Yeah you can brows a host from search results, but the idea is great.