Learning is giving, not just receiving
I recently read this article: http://bryanbraun.com/2013/09/21/please-stop-stewing-and-start-blogging-about-drupal
You can't ask for a better justification to throw up a blog and share some information.
It made me realize a few things.
First: You have an opportunity to help others out because you most likely learned something someone could benefit from.
Second: Don't be shy. If anything, someone may post a comment and share information with you again.
Third: Tools like Drupal were built by people who were not afraid to give back.
Step up and take your turn.