PHP Link Bid Script is a bid directory script, created using PHP scripting language. Before you ask ‘what is bid directory is, here is a short explanation: The traditional directory model has a fixed price for listing or reviewing your website, some directories are free so you do not even need to pay at all. However bid directories, whether PHP Link Bid, ASP Link Bid or bidding directory created in other languages run a model of directory submission where you have to ‘bid’ for the position you want your site to appear in the listing. So the more you pay the higher your listing will appear on your chosen category.

Some bidding directories even list sites on their homepage.