I know I'm a bit late to the party, but I have another idea. (Ok, fine, it's kind of a modification of @Monica's.)
While I think we have very good exposure to the regular, hamon-am, English-speaking, internet-searching masses, I think that we assume that we are looked down upon by many internet users who feel that we do not contribute serious learning, information, or new research to the internet. For example:
In my opinion, the best way to do this would be to develop a small kuntres or journal with full-length, edited articles based on MY posts, and to then try to disseminate it throughout the community/ies that we target. It may need a bit of fundraising, and will need a whole lot of work by a lot of people, but I think if we do even a decent job, it can give us a better name within certain circles, and hopefully attract more serious contributors.
Having users develop answers from, say, one of the "Best Answer Contests" into article form would allow for somewhat lengthy articles with serious scholarship to be put together, and even seasoned academics and Torah scholars would be able to appreciate the work put in by MY users, hopefully opening their mind to participation.
Thoughts are welcome! I realize I am a bit of a dreamer here, but that's ok, I think!