The fine artistic folks at Nunum just published another of my craft articles! Check it out: "Raising the Stakes in Flash Fiction."
They also feature great work & interviews with visual artists, such as Jon Fox, other articles about flash fiction (such as this one by Amie E. Reilly: "So What if You Don't Get Anywhere in a Flash"), as well as writing submission interviews (such as with literary luminaries Duotrope) answering the insightful questions: "How much do you want to know about the person submitting to you? and "If you publish writing, how much of a piece do you read before making the decision to reject it?"