If you check out http://directory.leadmaverick.com/mavtag.aspx you can search the database of articles for content related to your search. From the results you can grab RSS feeds (including podcast and other streaming media) for the companies that post the articles in.
If you want to post articles, the go to http://www.leadmaverick.com and open a free account. Unlimited content postings (including podcasts) and you get your own RSS feed. Down side is that there are ads, and no way to personalize the interface using the free account. It does include basic reporting.
Lead Maverick - Creator