This post is more of a brief personal note from the blog author than a math research update. The writer is apologizing to readers for the disappearance of the site's blogroll, a curated list of links to other websites and blogs.
The removal happened somewhat accidentally during an attempt to clean things up. The author had been planning to update the blogroll for a while, removing dead links that no longer worked. When Astronomy Picture of the Day changed its web address, it prompted the author to finally take action, which led to the blogroll being lost in the process.
While this post does not contain any mathematical content, it reflects the human side of running a math blog, where maintenance and technical hiccups are part of the experience. Readers can expect the author to work on restoring or rebuilding the blogroll in the future.