RSS Feeds
If you aren't familiar, RSS (Really Simple Syndication) is an easy way to "subscribe" to a blog (or any content publishing stream). It's entirely free and you control your own RSS reader. There's no easy way to tell who is subscribed or polling your "feed". As long as the site operator isn't doing anything crusty, it should be as private as visiting a site with JavaScript disabled (that is to say, pretty good).
RSS for this site: rss.xml.
Here are some of my favorite blogs:
YouTube hosts a lot of interesting stuff (and also has an RSS feed). Although, you may want to consider using an alternative frontend, such as CloudTube or Invidious. I enjoy these channels: