GreenBanan

Use: for to add “pretty contact” link, you should use bbcode like <code>[user type="%TYPE%" name="%NAME%"]</code>, where:
<ul>
<li><code>%TYPE%</code> – is the type of social-network. Оther types: deviantart, dribbble, facebook, forrst, github, habrahabr, lastfm, mymail, myspace, rutube, twitter, vimeo, vk, youtube.</li>
<li><code>%NAME%</code> – is a user name (identity) in a chosen network.</li>
</ul>
For developers: for to add a new social network in the list, you should edit JSON file which is called “rules.json” (plugin folder), in a certain way:
<ul>
<li>Value pairs <code>"%network_name%":"%URL%"</code> are hold there. You need to add a new couple in the file according to the JSON-standards.</li>
<li>You should put an icon of 16×16 sizes in the format png named <code>%network_name%.png</code> in the icon folder.</li>
</ul>
(%URL% is to consist of constant %UN%, which later will be changed to username) 
For example, for to add a network with the name <code>sky</code>, which addresses on personal pages look like так GreenBanan.sky.com, you need to add a pair <code>"sky" : "http://%UN%.sky.com"</code> and a picture <code>sky.png</code> (see above)
Under Development are:
<ul>
<li>the form of automatic and semi-automatic addition to a new social network;</li>
<li>the promotion of the list of the networks; </li>
<li>the translation of plugin if interface to other programming languages </li>
<li>an addition of the button into editing program</li>
</ul>
Contacts:
@Pup_V, vk.com/greenbanan, nikon@mediamara.by

Pretty Contact

The plugin transforms a link in a pretty and shorted one by means of bbcode.

rvwood

Add links and menus to posts, pages, and custom post types.
An “Add Link” button is added to the editor, click to show a menu:
<ul>
<li>Posts, Pages, to select a link destination.</li>
<li>Custom link, to type in the url of an external page.</li>
<li>Menus, to insert a menu that has been created in the Appearance –> Menus page.</li>
</ul>
A label may be added to describe the link.
All links will be inserted in the post as a “shortcode”
Menus will be rendered by the WordPress wp_nav_menu() function, this adds classes to various parts of the menu to enable it to be styled using css [more details here.] (https://codex.wordpress.org/Function_Reference/wp_nav_menu)
Integrated help is included: just click the “help” tab at the top right of the screen.

rvw Add Link

Easily add links and menus to your posts or pages.

Pretty Contact vs rvw Add Link