Understanding Pages
Although you can create as many static pages as you wish there is more that you need to know. Only one page on a blog will automatically update with each new post you make. The other static Pages you create sit outside the blog structure and they can only be altered manually by editing them. Pages cannot have categories assigned to them. Pages do not get any Google juice.
Inserting the More Tag
When writing a lengthy post there is an option to having the whole post appear on the front page of your blog. You can break the text and have the remaining text appear on another page.
Only one theme at wordpress.com I know of the Hemingway theme always displays only excerpts from two posts side-by-side on the front page.
The Fadtastic theme shows one complete post on the front page and then only linked titles to the other posts.
In all other themes more tag must be added using either the visual rich text editor, the standard editor or hand coding it into each post you that you wish to break the text into smaller segments in.
(1) If you are using the visual rich text editor then the icon number to use is #13 and you use it wherever you want the text break to occur. http://faq.wordpress.com/2006/05/15/what-do-all-the-icons-mean/
(2) If you are using the standard editor click the [more] button wherever you want the text break to occur.
(3) If you are hand coding type in <!--more--> wherever you want the text break to occur.
(4) If you do not like the text that the theme is hardcoded to provide when you use the more tag you can change it by hand coding in
<!--more your text goes here more!-->.
VOILA! Happy blogging. :)