To help with researching which LCD to buy

I've noticed alot of times when people start talking about different LCDs, it'll come up that Some LCDs are really the same thing, just packaged under a different brand name.

(The best example I can think of is that somebody once mentioned that all or some Dell LCDs are really Samsung units)

Long story short, I'm wondering if anybody knows of a website or something of that nature which lists which LCDs are the same as which others?