I suppose there is need for a seperate thread for this type of stuff but at any rate, you have to love the internet!

In 1980 (I believe), Geoff Downes replaced Rick Wakeman in YES. This was also about the same time that ELP and King Crimson disolved and where things start getting interesting.

Around 1981, Steve Howe (YES), John Wetton (King Crimson), Carl Palmer (ELP, PM) and Geoff Downes (Buggles, YES, Trapeze) got together and ASIA was formed.
In 1983 Wetton was replaced with Greg Lake (King Crimson, ELP,).

Three years later, with Downes producing, Steve Howe forms GTR with Steve Hackett (Genesis).

1988(?) Emerson and Palmer (plus Robert Berry) form THREE

Somewhere in here Emerson, Lake and Powell was formed but in 1990(?) Emerson, Lake and Palmer got together again.

It's kinda funny how names keep popping up, almost like a family tree. I guess it's like the saying goes: "when you're good..."