Should you launch more than once?
nathanbarry.com
nathanbarry.com
The site was running for years, but without any grand purpose or vision. Then I decided to completely revamp it, open it up as a platform for other cartoonists, and focus on a mission (help cartoonists make money). I wrote about this rebirth[1] and got an amazing response--24 hrs on the front page, lots of love and feedback. (And one minor snafu that cost me a few hundred bucks.)
I have another post sitting in draft mode about the exact results of that relaunch, including metrics, analysis, and discussion on getting qualitative product feedback.
[0] http://www.gagcartoons.com
[1] http://www.gkogan.co/blog/creating-new-business-model-cartoo...
http://www.nytimes.com/2010/01/24/magazine/24patterson-t.htm...
Here's the section:
"WHAT IS PERHAPS most remarkable about the Patterson empire is the sheer volume of books it produces. The nine hardcovers a year are really only the beginning. Nearly all of those books are published a second and third time, first as traditional paperbacks, then as pocket-size, mass-market paperbacks. “Scarcely a week goes by when we aren’t publishing something by James Patterson,” Young told me, only half-joking."
Another fiction example, to ensure the last book of the Wheel of Time would hit #1 on the NYT hardcover list the original author's widow talked the publisher into not releasing the eBook right away to make sure people who bought the book week 1 got the hardback ensuring it would hit the top spot.
This was in the 90s but similar principles are probably true in a lot of fields.
Joel Splosky wrote about this a long time ago with the whole idea that each new set of features lets you serve more customers, but it also gives you the benefit of a new "marketing event" that you can use to go out there and tell everybody what you are doing.
Like anything, "launching" is a skill, and the more you do it, the better you get.
Tim Ferriss also mentioned once that one reason he got into nonfiction books is he can relaunch a new edition every so many years and continue to make good money with basically the same material.
(I haven't purchased any of his products, so I'm not here defending him for any particular reason. I'm just a fan.)
[1] PHP Beyond the Web, http://www.leanpub.com/php
I think it's fine to plug oneself when it's at the end of an ostensibly useful article but a bit more jarring in a "me too" comment. I think the more socially acceptable thing to do is to put your book in your profile and mention that you're working on it. Those who are interested will find it easily. Opinions on this vary, of course.
The thing people should avoid is only commenting to promote their stuff.
They're blog-verts.
Nathan's stuff is great, I highly recommend it if you're planning on doing a project like this.