License for code posted on my blog

It occurred to me that while many people post code on their blogs, they seldom grant anyone else license to use their code. Google encourages their BlogSpot users to mark their posts with the Creative Commons License, but does not enforce users to do so nor do many blogs I've seen follow this recommendation. Now, the poster may know they have no intent to sue anyone over the use of their snippet, but how can the reader be sure?

To address the problem, I'm hereby declaring that all code posted on my blog (kbyanc.blogspot.com) is covered by the license below unless otherwise indicated in the body of the post itself:

Copyright (c) 2007, Kelly Yancey

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

I hope that others will follow suite and clarify the license terms of use for content posted on their blogs too. Use a different license if you like (it is your code after all), but don't be fooled into thinking that simply posting code on your blog makes it open source.

And before someone writes that I should just declare the code to be public domain, I should point out that you can't do that (at least it probably won't become public domain until I'm so long dead that the idea of using the code I posted at the turn of the century seems quaint).