Forum Discussion
Wiki page or Wiki site ?
SharePoint Online is undergoing some changes, so I wouldnt consider this the end all be all. That said a standard Team Site in SharePoint (before the Modern Team Sites) is essentially a Wiki Site. They already come with the Wiki Home Page enabled. A project site template does not come with the Wiki site/pages configuration and locks you in to web part pages with defined zones, where as the wiki pages are more flexibile from a layout perspective (without code). You then just create new pages (wiki pages) in the same library as the Home Page for the site. You still have the ability to activate all the other site features, although I would not recommend activating Publishing as that changes how pages work in your site and you move away from wiki style pages. You could also add separate Wiki libraries in your site. For instance my team has a site that has a lot of documents and some other main pages and then we have a specific wiki library created for knowledge base purposes.
Team site or Wiki site at the end of the day you just need to know that your site has a Wiki App to hold your pages. Most new sites have a "Site Pages" library that is actually a Wiki App. The key thing to look for in your site contents is the library with the Flower like icon as shown below. With that said you can use that library to generate wiki pages to organize content and even use the wiki links with the [[double brakets]] if need be. (see the how to use this wiki library page that comes with the wiki library) These pages can also be set as the home page to your site if you want to get away from the clunky web part pages as they are historic to older versions of SharePoint. :smileyvery-happy:
One last tip for those who use a wiki page from the home page is that you can access your wiki library by going to Page > View All Pages to see the home page with the others in the wiki page library.
Oh and one more thing, you can also add web part pages to your wiki library if need be. That is hidden in the files ribbon tab as shown below. :smileyvery-happy: