Rucker maintained a blog called The Roleplayer's Redoubt on MMORPG.com, and he was also featured in Massively's The Game Archaeologist, where he talked at length about MUDs, MUSHs, and Star Wars Galaxies.
Massively columnist Larry Everett remembers Rucker as "a very prominent member of both of my websites and a personal inspiration to me as a gamer, writer, and roleplayer." Rucker, known as Cap'n in SWG circles, covered roleplaying in dozens of disparate MMO titles. He also offered plenty of sage advice for both newbs and veterans alike.
[Thanks to Laura for the tip.]