One sure way to allow people to learn and collaborate with you is by opening up your materials for review and enhancement. Creative Commons www.creativecommons.org allows people to obtain open or limited licenses for their works, especially the ones that are created online. According to their website:

Creative Commons is a nonprofit corporation dedicated to making it easier for people to share and build upon the work of others, consistent with the rules of copyright.

We provide free licenses and other legal tools to mark creative work with the freedom the creator wants it to carry, so others can share, remix, use commercially, or any combination thereof.

You can secure different licenses to any kind of work, you wish to post online. Learn more about intellectual property rights and open licenses thru their website.