A blog is a website where you can post articles, photos and even video in some cases. Visitors can usually view your blog entries, and registered users can post comments if you allow it.

Blog software are usually free or have a low fee to set up. Blog software with fees may have additional features like RSS, "skins," user friendly audio/video embedding options, banner management, mobile upload/download, and SEO.

Some blogs do not register in SEO, are do not allow for RSS generation outside of the software interface, so choose wisely.