In general, I am happy for you to use these graphics and resources anywhere you like with the following exceptions:
1. On any website which promotes hatred.
2. On any website which contains content which is not suitable for people of all ages.
3. For graphics which will be sold

Please credit me if you use my graphics. A simple link back on a credits page is fine. Please feel free to look at my source coding if you want to learn something.
If you are unsure about something, please feel free to contact me.