Bolt makes it really easy to build a blog. And here are some useful extensions you should look at.
Let’s you easily extend the default users table
with new fields like description, avatar and social media account links.
Let’s you define custom title, description and other meta tags.
Adds the Disqus comments system.
Creates XML sitemaps you can use for Google Webmaster Tools.
Provides a simple RSS feed for your readers.
Provides new listing for records grouped by month or year.
Let’s you add tag clouds or category lists.
Uses the tags of a record to determine other related records.
Sophisticated, Lightweight and Simple