try http://rentacoder.comYou can have this one for free. It may need some tweaking to suit your needs, but it works and does what you asked:
Set up a MySQL table called 'galleries' with 3 fields; 'url', 'title', and 'niche' and populate it with at least 100 galleries.
Create the necessary connections to the database.
<table style="width:630px;margin:auto;border:0;padding:0;">
<tr><td valign="top" style="padding:3px;width:310px;">
<?php
$i = 0;
$today = date('M d');
$yester = date('M d',mktime(0, 0, 0, date("m"), date("d")-1, date("Y")));
$number = rand(95,98);
$query = "SELECT * FROM galleries ORDER BY RAND() LIMIT 100";
$result = mysql_query("$query");
while($links = mysql_fetch_array($result)){
if($i == 50)
echo '</td><td valign="top" style="padding:3px;width:310px;">';
if($i > $number)
echo '('.$yester.') <a href="'.$links[url].'" target="_blank">'.$links[niche].'</a> - '.$links[title].'<br>';
else
echo '('.$today.') <a href="'.$links[url].'" target="_blank">'.$links[niche].'</a> - '.$links[title].'<br>';
$i++;
}
?>
</td></tr>
</table>
What that does is grab 100 random galleries from your database and lists them in two columns of 50 with today's date on most of them except the last few that have yesterday's.
(If you didn't want to use a database, you could list them in an array and 'shuffle' it)
To see it in action check out http://oast.com/adult/ (about half way down the page under "Latest Free Sites")