Linked IN is a very interesting online community where you can connect to other business people based on common associations, industry, education, etc. It’s hard to describe but free to setup, so check it out.
Take a look at my profile on Linked In and become a connection of mine.
Discussion forms are another great tool. You simply set up a signature, like you did with your email, and then search for forums in your industry. When you find one, you look for questions that people are asking where you know the answer.
Important, don’t post ads for your business. You need to add real value to the discussion. This should be easy if your passionate about your business.
You can write articles about your industry and post them to article websites. You include a resource box with your website URL in it. The article websites distribute your article through the web with the agreement that anyone who uses your article has to keep it intact including your resource box.
Here’s a link for a site that has listed a lot of the article directories. If one of the niche directories is a good fit for your business, I would start in that section.
http://www.arcanaweb.com/resources/article-directories.html