The Blogs module allows you to publish a personal or company blog. You can publish multiple blogs on the same site and there can be multiple editors for each blog.
You can edit blogs at CMS Desk -> My Desk -> My Blogs.
For more details and information about blogs please refer to the Module Blogs chapter in Kentico CMS Developer's guide.
Page url: http://devnet.kentico.com/docs/5_5r2/ecommerceguide/index.html?blogs.htm