This technique is to set your pay per click bids at the lowest possible bid allowed by that search engine. (The minimum bids vary, please see Pay Per Click Search Engines for more details).

This technique will get you some exposure (depending on how many competing sites there are) at a very low price. Do not expect to get huge amounts of traffic from these bids as in most cases your ad will not be seen often.

In very competitive markets, you might see a dozen sites at the bare minimum bid. In these instances, bidding a few cents above the minimum could raise your internet visibility a significant amount as your pay per click search engine position will raise above all the other minimum bidders.

This bidding technique is good for getting some exposure at a minimum cost. It can also be a way to slowly introduce yourself into the pay per click market so you can better understand the intricacies while not spending a lot of money.