Terminology
Manager - The "backend" administration section of your website. You reach the manager section by logging in.
Site Tree - The list of Resources, or documents or pages, that make up your website. The Site Tree is located on the left side of every manager page.
Dashboard (Welcome Screen) - This is the main page you see immediately after logging in to your Manager. The Welcome Screen or Dashboard can be customized by your website developer. The Dashboard you see in the tutorials or screen shots on this site has been highly customized, so it is normal if your Welcome Screen looks quite different.
Resources - This is the Modx name for Documents or pages within your website. Not every Document is necessarily a web page, but all documents and pages are referred to as Resources.
Weblink - A Weblink is a link to another web page on the Internet or within your own Modx site. Modx treats Weblinks much like Resources (Documents) so you can add them to your menu and link to them much like you link to Resources (Documents). A Weblink is often used to redirect an internal Modx link to an external web page.
Publish/Unpublish - This refers to the state of a Resource (Document). A Published Resource is one that is "active" or "live" on your website. In other words, anyone in the world can access it if they have a link to it or know the direct URL. If you Unpublish a Resource (Document), it will remain in your manager so you can edit it, Publish it, or Delete it later. An Unpublished Resource is NOT accessible to the public. It is deactivated from the "front end" of your website. The same applies to Weblinks.
Cache - Modx will "cache" your site pages to help them load faster for the end user who views your website on the Internet. Cache means an old copy of a Resource or Weblink is stored within Modx so it can load faster for the end user. If you update a Resource or Weblink, and it is not updating on the front end, clear your Modx cache by clicking the SITE tab and CLEAR CACHE on the sub menu.
Meta Tags & Keywords - These are pieces of information located within the header section of a web page that give the browser information about that page. They are not necessarily seen on the web page but contain information such as keywords for that page, author, character encoding and more. In Modx, you will use this section to add keywords to a page.
Web User - A Web User is a user that can log in to your website on the "front end" (the part of your website that is viewable to the general public). This is used to give end users access to private information that only they can see. It can be general information for all web users, or specific information for a particular web user.
Manager User - A Manager User is a user that can log in to your website's "back end" or manager section. This allows them to make changes to pages and more, depending on the level of access they are given.
Backup - Use this feature to backup the database associated with your website. This will backup all the information stored on your pages including actual pages (Resources), images, links, etc.