Please find below a partial listing of websites/blogs that I have found to be useful.
Please remember to read before asking basic questions, many of these links will take
you months to read, weeks to search, minutes to disrupt (don't be lazy).
Do not be disrepectful of ownership of intellectual property; follow this as a guideline: it might be OK to make
and play with a physical/virtual copy for your own use, but beyond that, better beware of the consequences!
Search for "Creative Commons License", and, if in doubt, always be sure to list attribution at the very least.