How do you follow blogs & personal websites? Via RSS? Twitter? Newsletters? Bookmarks? What if someone doesn't use RSS/Twitter/Newsletters?
How often do you visit the sites themselves and poke around (ie to discover things that aren't shared on social media or don't show up on RSS)?
Anything else and I'll visit the site manually if and when I remember. Requiring me to follow a blog's content announcements on a platform I don't use is a recipe for losing me as a potential fan. So you either need to be everywhere or nowhere. There's not much middle ground there.
When setting up a blog, an RSS feed should be built into most options or easy to add.