Tansy Rayner Roberts, a writer and blogger I enjoy very much, usually blogs at Stitching Words, One Thread at a Time but she has been on what she describes as a slapdash blog tour to publicise her new book The Shattered City. One of her stops was at Egoboo WA and she has listed some of her other guest blogs here and here.
One that particularly interested me was at The Journeyman Writer where she describes the ups and downs of a writer's life. The first advice given to anyone who sets out to be a professional writer is often 'Don't quit your day job'. You don't have to be around this business too long before you realise that full time, professional writers like J. K. Rowling, Stephanie Meyers and Stephen King who make squillions and get big advances are the exceptions. Most writers make their livings in a combination of ways - writing, teaching, corporate work etc.
Having just read this post I came across something similar at John Scalzi's blog. It confirms just how erratic a writer's income stream can be. It's a lesson we all need to bear in mind, I guess, because for many writers the business side is something we would rather not think about too much - and we should.
Apology: I completely messed up my links here. They are now corrected.