Each guide can contain 1 or more pages, so you can think of a guide as a mini-website. In addition to pages, guides consist of boxes for content, which can include text and/or assets (links, rss feeds, videos, polls, widgets, etc.).
Hierarchy: Guide > Pages/Subpages > Content Boxes > Info you add to the content box
When logging in, you should use the CWL login option, not a LibApps account.
To request LibGuides accounts, provide the names and email addresses of new users using the Library Web Services Contact Form. Under "What can we help you with?," choose "Web Services."