Facebook creates a better Way to Organize Your Ads

There is no secret. Facebook ad mechanism is on of the best for local businesses. It gives you the way to address to people near you and increase you local fan base.
Facebook just made simpler the way it organize its ad structure so now there are three levels of organization:  campaigns, ad sets and ads.

Let see the new structure

Campaigns

It's now easier to organize your campaigns around objectives to get better optimization and reporting on your ads.

Ad Sets (new)

You can have multiple ad sets in a campaign, each with its own budget and schedule. Create ad sets for each audience to optimize your ads for each one and measure their response.

Ads

Ads will still work the same as before, with controls for targeting, creative and placement.

What about existing campaigns?

• Your ads have not changed.
  This migration will not affect your ad performance, and all your historical data is still available.
• Each campaign has one ad set.
  The ad set contains the original budget, schedule and status of your campaign.

Conclusion

By adding an extra level, facebook makes campaign handling easier if you want to use different audiences, make split tests and compare your campaign results. 

If you have a simple campaign you can use one ad set per campaign.