If you want to insert a link ion your website, nothing is easier.

Here is how you do a text link :

Population Data.net : Informations, maps et statistics on populations and countries of the world
<font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><a href="http://www.populationdata.net" target="_blank">Population Data.net</a></b> : Informations, cartes et statistiques sur les populations du monde</font>

Voici comment insérer un bouton :
taille 88x31 pixels 1,59 ko

<a href="http://www.populationdata.net" target="_blank"><img src="http://www.populationdata.net/images/pub/boutonpopdata.jpg" width="88" height="31" border="0"></a>

taille 120x60 pixels 11,44 ko

<a href="http://www.populationdata.net" target="_blank"><img src="http://www.populationdata.net/images/pub/popdata120x60.gif" width="120" height="60" border="0"></a>

taille 125x125 pixels 6.5 ko

<a href="http://www.populationdata.net" target="_blank"><img src="http://www.populationdata.net/images/pub/popdata-125x125.jpg" width="125" height="125" border="0"></a>

taille 250x250 pixels 17.5 ko

<a href="http://www.populationdata.net" target="_blank"><img src="http://www.populationdata.net/images/pub/popdata-250x250.jpg" width="250" height="250" border="0"></a>

Voici comment insérer une bannière :
taille 468x60 pixels 20,25 ko

<a href="http://www.populationdata.net" target="_blank"><img src="http://www.populationdata.net/images/pub/popdata.gif" width="468" height="60" border="0"></a>