If you’re interested in discovering RSS feeds from the JURN Directory of ejournal home pages, here’s the recipe:
Make an “instant custom search engine” from the JURN Directory. This is different from the main JURN engine — it’s searching the home pages, not the articles.
Now you can search this on-the-fly engine using this formula:
inurl:rss OR inurl:feed OR inurl:rdf keyword
You’re now searching only within news feeds, although in practice it’s not actually that useful — because so few open/free ejournals have news feeds.
The other drawback is Google Search’s “hard” limit of 100 results per search query.