Housekeeping: Removing duplicate search boxes

I don’t know how I managaed to miss this for so long but I have just noticed that this blog is was displaying two search boxes: One on the header bar and one in the sidebar. This is now rectified and the redundant search box in the side bar has been removed.

While I’m looking at the sidebar, I have also noticed a couple of links to social networks I no longer use. These links will be gone by the time you read this post.