This takes us to our final point: Feeds. You can probably get away with just the first two items and then sharing it with people you already know, but what about meeting or talking to people you don't know? That's where Feeds come in. The idea is to create another page on your blog that has all the RSS feeds you're subscribed to. By keeping this public and always up to date, someone can visit your page, find someone new and follow them. Perhaps that person also has a feeds page, and the cycle continues until there is a natural and organic network of people all sharing with each other. So if you have a blog, consider making a feeds page and sharing it! If your RSS reader supports OPML file exports and imports, perhaps you can share that file as well to make it easier to share your feeds.
Here's an example Feeds Page which should help get the idea across!