I'm a fan of Bob Mayer's blog, Write It Forward, but today's is gonna be a long-time favorite. I've added it to my Favs list on the right-hand panel here on my blog, as well. It is entitled "The Real Gatekeepers in Publishing Now? Authors"--about how we control our own destiny. About writing good books. About getting the word out. About backlists--which just means, continue to write.
There is a great quote that sums up the "just write" mentality. Here it is, courtesy of Annie Dillard.
"How we live our DAYS is how we live our LIVES." [emphasis mine]
So write daily. Consistently. Persistently. Don't let the devil on your shoulder tell you that one page isn't worth it. That fifteen minutes spent writing doesn't add up to a novel one year later. Keep at it. Build up your backlist day-by-day.