agrafix

This plugin adds hyperlinks to specified words in posts and pages. This can be very usefull if you are using complicated words and want to link Wikipedia articles or 
if you just want to improve your seo by linking some interessting words 🙂
<h3>Example</h3>
Your Text: 
 Welcome to a blog about google
Your Plugin-Settings: 
 blog|Wordpress software|http://wordpress.com 
 google|Search engine|http://google.com
Result: 
 Welcome to a <a href="http://wordpress.com" title="Wordpress software" rel="nofollow ugc">blog</a> about <a href="http://google.com" title="Search engine" rel="nofollow ugc">google</a>

agLinker

This plugin adds links to specified words in posts and pages.

jitendra5984

We are experise in wordpress development, We have seen lots of complications in getting page permanent link by code with normal users. Developers have lots of ways to add page/post link in content area. And other available plugins have lots of complications which are not easy to use for normal users of wordpress.
Here we introduce very simple plugin for getting page link by id. This is used by very unique function names so no contriction with any other available plugin of wordpress. Apart from that its made by very basic codes of wordpress in that way there would be no issue in any version of wordpress. It means its compatible with all wordpress versions, you can use it with anyone.
Examples:
Link with page title example 
Shortcode: <code>[pagelink id="123"][/pagelink]</code> 
Result: <code><a href="http://yoursite.com/page-link/">Page/Post Title</a></code>
Link with custom page/post title 
Shortcode: <code>[pagelink id="456"]Custom Title[/pagelink]</code> 
Result: <code><a href="http://yoursite.com/page-link/">Custom Title</a></code>

Get Page Link By ID

Very simple plugin to use shortcode for showing links by page/post id. Very easy to use.

agLinker vs Get Page Link By ID