If your WordPress site is set up to show the full length articles on the homepage, you can add a continue reading after a specific paragraph by adding a < --more--> tag after a paragraph. The paragraph will show up on the homepage and the rest of the article will be on a clickable link. Here’s a video on how to do it. Read more on the link below
Creating sub-domains gives you the ability to create shortcuts to special files, folders or websites. Say for example that you’re working with a freelance client and you want to point them to a folder on your site where they can see their new redesign. You could tell them. Go to http://iviewsource.com/clients/clientname/projects/website/redesign which is tough to remember and long to even try and say over the phone. With a subdomain shortcut, you can simply tell them to go to http://clientname.iviewsource.com and the server will automatically redirect them to the same folder.