This calendar view maps the number of times http://www.skepticalscience.com/news.php?n=95 was crawled by the Wayback Machine, not how many times the site was actually updated.
This calendar view maps the number of times http://www.skepticalscience.com/Must-read-article-on-ocean-impacts-by-ocean-scientists.html was crawled by the Wayback Machine, not how many times the site was actually updated.