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.

piffpaffpuff

Related Links gives you the possibility to manually link other posts to your current post. But you can also link pages, media or any custom post-type. And in addition you can use custom urls to link to external files. The plugin adds a Metabox to the writing page with a list of all available content.
Features:
<ul>
<li>Shows a list of all available content in a Metabox on the writing page</li>
<li>Multiple links can be selected</li>
<li>Link order can be changed through drag and drop</li>
<li>Custom URLs can be added</li>
<li>Search field to quickly find a link</li>
<li>Simple theme integration with an included widget or <code>related_links()</code></li>
<li>Works with custom post-types</li>
<li>Settings to enable the post-types that should be shown in the Metabox</li>
</ul>

Pretty Contact vs Related Links