Tip: Many blog applications are available for users to download and install on their own systems. The most common blog software is Wordpress. A wide variety of licenses are used by user hosted weblog software. Some of these are free and open-source that can be used, modified, and redistributed freely under free-software and open-source licenses. Maintenance through the Internet is a nearly universal feature of blog software. This is usually done through a browser-based interface, enabling authors to create and update content on the site.