Pages for SharePoint Online Sites
You can create and develop three primary types of SharePoint pages (in your browser, no less!) — each with a distinct function: content, Web Parts, and publishing pages.
Content page: Also known as a wiki page, this is the Swiss Army knife of SharePoint pages. A content page provides not only a place to put content but also a kind of workshop for collaboration, development, and customization — multiple users can wield a full-featured text editor built right into the browser.
A content page is easy to develop and is an extremely powerful and intuitive tool for collaborative authoring, data capture, and documentation. For example, if you are in the business of manufacturing consumer products, then you might have a content page that allows customer service reps to capture common questions that users have regarding your products.
The page could be dynamically updated as the reps encounter new questions without the need to call in a programmer.
Web Part page: This type of SharePoint page provides Web Part zones where you can drag and drop various Web Parts (reusable pieces of functionality) right onto your pages from the SharePoint Web Part gallery. Although a set of Web Parts comes standard with SharePoint, you can also custom develop Web Parts to meet your specific business needs.
Imagine developing a Web Part for your company that ventures forth to become an everyday tool for nearly all the users in your organization — on their own sites — and to get the tool, all they have to do is simply drag and drop the Web Part right onto their pages.
For example, you may have Web Parts that you have developed for your call center reps. When new Web Part pages are developed, the Web Parts that are used by the call center can be added to the page. This lets a programmer package up web functionality into a reusable component (Web Part) that can be reused on multiple pages.
Publishing page: This type of SharePoint page is designed to serve two functions: managing content and managing the look and feel of the page. A publishing page lives in a document library that provides version control and the SharePoint workflow feature. It’s designed for the management and distribution of content — the essence of publishing content to SharePoint.