If you have 10+ websites, it's hard to sell links and put them by hands. Do you know any useful scripts: You open it, choose your website (or few), choose url and anchor of your paid link and click "add it" Thx for your hints!
Well, you can use a simple PHP script using one database where are stored links or a file containing HTML code (check out a PHP function called "fopen").
Are you using Wordpress? The plugin Advertising Manager should do all of that for you, although you'll need to run it individually on each site.