I heard Heather Brooke left the business/retired a few years ago. I'm not big onto porn nowadays, so I can't really be sure. But damn, that woman could suck a mean dick. She used to have videos swirling around on the P2P servers (limewire, kazaa, etc.) before full-length porn movies were available on the web.
Yeah, just googled it and Heather Harmon (ideepthroat) did indeed retire after having a kid.
She was definitely legendary!