Which source license applies?
I have little time and much to do, so the last thing I want to do is repeat myself 
. As you might have noticed most source samples have been put together quickly to demonstrate a certain idea with documentation but without any license info.
So in case you are wondering, UNLESS explicitly otherwise specified in a blogpost or the source code for an example, the sources available on this site can be used free of charge, and without attribution (but feel free to do so). Of course this excludes sources for purchased products, and excludes the right to use sources acquired through decompilation of any files for which the sources weren’t provided (which hopefully is near 0%).
More formally:
/**
* This software is released under the MIT License.
*
* Copyright (c) InnerDriveStudios, JC Wichman
*
* 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.
*/