Link website to facebook and twitter

Question

how do  i link my web site to facebook ,twitter or any other social webite

 

please find attached file in that marked few images as red out line 

 

plz 

Answer 1

<li><a class="newSpriteIcons facebook" title="Share on Facebook" href='https://www.facebook.com/sharer.php?u=http%3a%2f%2fwww.c-sharpcorner.com%2fblogs%2forganizationsharp39s-expectations-from-dot-net-web-developer' onclick="popupwindowAtCenter(this.href,'Share on Facebook',600,600);return false;" target="_blank">facebook</a></li>