So, in reviewing the traffic logs (in case you noticed, I'm doing that almost obsessively) I noticed a new bot hitting the site: Psbot. It belongs to a site called picsearch.com, which indexes images and allows users to search through them. Personally, I'm not a fan of having my photography ending up in a database for save to desktop thieves. Needless to say I learned how to use my robots.txt file to block the bot. I just created a file called robots.txt and added an entry that looks like this:
User-agent: psbot
Disallow: /
psbot is the name of the bot to block, and by using the / (or root) I have blocked the bot from my entire site. You can also specify certain directories, however, there needs to be a separate disallow line for each directory you wish to block. You can also use the wild card, *, to block all bots.