I had a lot of people point out to me that it's odd to be selling Knockspell 1, 2, 3, and 5 on RPGNow, and not selling #4. It's not that I had any particular reason for not having #4 on RPGNow, I just never got around to it somehow.
In any case, this probably isn't a "sit up and start clicking" announcement for anyone, but just to let people know, the pdf of #4 is now up with the others on RPGNow as well as lulu. The RPGNow link is THIS LINK HERE.
EDIT - Quick note that this is NOT #6, which will be the latest issue, this is just housekeeping with an older issue.