This is the first I've heard of Helix :: a Speculative Fiction Quarterly, but I'm looking forward to checking it out. A new SF webzine edited by Lawrence Watt-Evans and William Sanders, it features fiction from Richard Bowes, Adam-Troy Castro, Janis Ian, and others, reviews, editorials, and the first in what promises to be a regular series of columns on the subject of alternate history by the master of uchronia himself, Steven H. Silver. All available online for free, the site supported entirely by donations.