My experience of online community

I'm late to post my experience of online community..

It was really hard for me to find community related my major. At first, I tried to find community about "Marketing in developing country". I found the article  related this on blog but I could not post my comment because I thought this is not right to place to post my comment, it was written a couple years ago and no one post comment on that.
After that I changed my mind to find community about my hobby, snowboarding. I post "where is the recommend place to go snowboard in Southern California?" on one article in blog. I was surprised because I got reply soon after I posted.

From this experience, I found it really hard to find blog or community online from tons of information because some blog or community do not carry on these days. I think to join community that related my major is the bast way to build my bland for student who doesnt have many real network so I try to keep finding a community.