Cult of the Dead Cow.
One mage's Livejournal charting his progress while performing the Abramelin operation.
A distributed version control system, similar to Git or Mercurial, only it also includes a bugtracker, a wiki, and a blog for collaboration in the same package. Includes a web interface for everything. Can automatically sync with other instances. Self contained.
A list of the top 20 security practices for the NginX web server. Worth it for the SElinux and /etc/sysctl.conf modifications alone.
A sysadmin's how-to post on getting started with VMWare ESXi.
A blog post describing the 5x5 method of designing adventures and campaigns for role-playing games.
Not in a position where you can download the VMware vSphere client to a workstation so you can do what you need to do? Somebody figured out the download links for versions as far back as v4, so you can download them manually if you need to. He's documented it here.
Pelican is a package which generates a static blog (i.e., it renders the HTML files for your site when you tell it to and that's it). Written in Python. Uses Markdown to format posts prior to rendering into HTML. Comments are implemented with Disqus, so you don't have to fiddle with setting up shared hosting to store comments from readers. Can even import contents of Wordpress or Dotclear installs, or anything that has an RSS feed.
Jekyll is a static blog implemented using Bootstrap meant for use by developers and designers. It was specifically designed to be deployed as a Github Page for development projects. Has an online installer. If you need something fast and easy, this is a good possibility.
No database. Uses Git on the back end.
The archives of Discordianism were saved from the (literal) dumpster, and are being put online for posterity.
A blog about automating the gathering and analysis of OSINT data. Lots of howto stuff. Lifeline's grabbing the RSS feed already.
H-Rep is a fairly active Eclipse Phase fan blog that posts not only ideas and drop-ins, but news about the game as it appears.
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Archive of shortwave radio recordings to download.
A daily weblog of the weird, mysterious, occult, and strange, with links all over the place.