During this adventure it hit me what a perfect way of gaining knowledge this is. To give a good answer takes thinking, researching and not to forget, good communication skills. I learned a lot from this and got a lot of great feedback from fellow developers.
So my advise is that you should pick a topic (tag on Stack Overflow) that you want to learn more about and start asking, reading and answering questions.
My next tag will be jQuery Mobile.
See you on Stack Overflow!