88x31


Code:
<a href="http://www.c0rk.org" target="_blank"><img src="http://c0rk.org/files/images/88x31_c0rk.gif" width="88" height="31" border="0"></a>


468x60


Code:
<a href="http://www.c0rk.org" target="_blank"><img src="http://c0rk.org/files/images/468x60_c0rk.gif" width="468" height="60" border="0"></a>