Simply put, a media buy is when an advertiser buys space on a high-traffic website.  Pulse360.com is an example of an advertising network where you can place a media buy.  Via pulse360, you can feed your site into places like Weather.com.   Weather.com sells portions of pages for advertisement, which is where you come in.

You may be working with various ways to pay for an advertisement.  CPM is when an media buy organization gives you a certain number of “Impressions”, which are loads of your ad on their site.  For every thousand times that ad loads, you pay a certain amount.  This technique is used on Facebook.

If you’re working with a PPC media buy organization, then there are two options, either they have a flat rate fee for each click (hence, pay per click) or you can bid.  Each media buy has one of these options.  AdSonar uses bid for PPC to allow you to place your ad on the web for sites like CNN, People Magazine, and so forth.

Now that you know how to go about getting one of those sweet banner ads on a site, don’t go getting yourself killed.  Media Buying is a great way to bring in a thousand leads a day, but it is also a great way to waste thousands of dollars a day.  Do you due diligence and scope out what your competitors are doing.  Then simply mach their campaigns.  Once you start to convert, branch out slowly -  Caveat: WATCH YOUR NEW CAMPAIGNS CLOSELY.  TEST, SPLIT TEST, AND SPLIT TEST THE SPLIT TEST.