Since I write science fiction and am an officer of SFWA, I’m well known in the world of science fiction writers.
*People who I’ve actually hung out with *
Esther Friesner, Hal Clement, Samuel R. Delany, Jane Yolen, George Zebrowski, Jack Dann, Nancy Kress, Melissa Scott, Rob Sawyer, Joan Vinge, Don Kingbury, Barry B. Longyear, Julius Schwartz, etc.
People I’ve met briefly
Terry Pratchett, Gene Wolfe, Pat Murphy, etc.
Those I’ve met online
Raymond F. Feist, Jerry Pournelle, Neil Gaiman, Lawrence Watt-Evans, Norman Spinrad, A. C. Crispin, Michael Kube-McDowell, Wil Wheaton, J. Michael Stryczynski, etc.
Those I’ve corresponded with
Orson Scott Card, Harlan Ellison, Kurt Busiak
Those who’d recognize my name if I introduced myself
Anyone in the Science Fiction and Fantasy Writers of America.