PPC (pay-per-click) agencies help businesses to develop and implement effective pay-per-click advertising campaigns. PPC agencies typically offer a range of services, including:

1. Keyword research and selection: PPC agencies help businesses to identify the most relevant and high-performing keywords for their advertising campaigns.

2. Ad creation and optimization: PPC agencies help businesses to create eye-catching and compelling ads, and then optimize these ads to improve their performance over time.

3. Campaign management: PPC agencies manage and monitor businesses' pay-per-click campaigns, making adjustments and optimizations as needed to improve their performance.

4. Reporting and analysis: PPC agencies provide businesses with regular reports and analysis of their pay-per-click campaigns, helping them to understand the effectiveness of their campaigns and make informed decisions about their advertising spend.

5. Bid management: PPC agencies help businesses to optimize their bidding strategies, ensuring that they are getting the most value for their advertising spend.

6. Account management: PPC agencies provide ongoing account management and support, helping businesses to address any issues or challenges that may arise with their pay-per-click campaigns.

In summary, PPC agencies help businesses to get the most out of their pay-per-click advertising campaigns by offering expert knowledge and experience, and providing a full range of services to support businesses' advertising efforts.