Two RSS feeds are offered for each blog: a partial feed and a full feed. The partial feed is concise and simply provides the headline and first sentence or so of the story. The full feed provides the entire story. Use whichever you prefer.
If you don't know what an RSS feed is and you don't use Google Reader or another RSS aggregating service or utility, then the following is nothing you need to worry about; continue visiting as normal, or opt for email notifications.
Note: most browsers do NOT read XML feeds properly. A dedicated RSS reader is what most people use.