7 Jul 2005
FinancialContent is using the RSS <category> element as the basis for a spec expressing information useful to financial analysts. Dave says he hasn't seen this approach before, but look at the RSS 2.0 spec, the category element has a stock symbol under a financial news site's domain as an example! So the novel part might be someone actually publishing a spec about this.
This seems like an excellent way to extend RSS. If the form of the <category> element can possibly express what you need, why prevent your feed from being intelligently handled by all the existing category-aware aggregators? Compatibility is courteous.