First off, I must say wow.  In the few months I have been a member of ActiveRain I have found it to be a great community of professionals as well as a vital source of information.

Lately I have been venturing outside of the community into small business blogs, organization blogs, time management blogs, advertising idea blogs, marketing blogs, copywriter blogs...and you know what?  There are some other great resources out there.

I would also recommend you consider creating a second blog for yourself that is not just an ActiveRain blog and get involved in some additional communities.

Here's a great blog from a SEO copywriter that I've learned a lot from:

 http://selfmadechick.com/2007/10/17/the-4-currencies-of-the-blogosphere-and-how-to-get-your-share/

Have fun!

John