read
Found this handy list of news aggregators that support SSL. In fact my own favourite NewzCrawler already does it if you download a library.
The nice people at silverorange also provide some RSS feeds so you can test various flavours of authentication. Here is one that uses SSL but doesn’t require name/password authentication
In case this is all techno mumbo jumbo to you, here is the point: blogging can be used as a secure channel for propagating confidentional information to selected readers