Where did the groups go?

One thing I've noticed in hip hop recently is that we don't have enough groups making music. Some of the greatest hip hop classics have been made by groups, not solo acts. I think sometimes we forget how much energy a group can bring to the table, and I personally would love to see more groups formed.

Anyway, I'm a sucker for lists, so here's a video someone made of their top ten favorite hip hop groups. My top ten would play out a little differently, but most of the important groups are represented here. So here you go.