Pay Per Click or SEM (Search Engine Marketing) is one of the easiest ways to promote your business. It's also one of the most competitive making it imperative to have it one properly to avoid wasting budget. 

PPC

Having your business show up along with search results is a great way to promote your business to potential customers.

Remarketing

Being able to target previous visitors to you site as they browse the web is an amazingly powerful tool to keep your business front of mind and create repeat business.