[Brad]

Easy way to do this would be to pass a list of forum ids in the url.

You can use this to exclude forums from the search;

http://www.forum.com/search.php?do=getnew&exclude=1

This will pull posts only from forums you specify;

http://www.forum.com/search.php?do=getnew&include=1

You can pass multiple ids at once, like so;

http://www.forum.com/search.php?do=getnew&exclude=1,2,3,4,5
http://www.forum.com/search.php?do=getnew&include=1,2,3,4,5

This also works with getdaily.