One of those who is not on LiveJournal is Troy Rutter, although you can find his blog syndicated at troy_rutter
Troy's a fascinating person. He grew up in Iowa, and worked for a few years as one of the staffers for the television show Babylon 5, as an official liaison to the fan community. He's written what is arguably the most useful book for parents of children in Hollywood: Kids in the Biz: A Hollywood Handbook for Parents.
And now he's trying to write a 50,000-word science fiction novel in a month, to which I must say: Go, Troy!
You can see how he's doing at Troy's Author Page.