CPA marketing is Cost Per Action marketing. This type of affiliate marketing is where the affiliate is paid by the advertiser when a specific, predetermined action is performed by a visitor to the affiliate's link. The action could be a purchase, lead generation, or form submission. This makes CPA marketing a very effective way for businesses to track their marketing Return On Investment (ROI) and only pay for successful results.

Here's the basics of how a typical CPA marketing offer works:

1. The advertiser creates a CPA marketing offer and specifies desired action; an email submit, for example. 
2. The advertiser then joins a CPA network, which is a platform that connects advertisers with affiliates.
3. The affiliate finds a product or service that they want to promote and joins the desired CPA network.
4. The affiliate creates content or advertising that promotes the advertiser's product or service.
5. When a visitor successfully takes the desired action, such as submitting their email address, the affiliate earns a commission from the advertiser via the CPA network.

CPA marketing is a popular choice for businesses of all sizes, as it offers a number of benefits, including:

• Trackable ROI: CPA marketing is a very effective way to track your marketing ROI, as you only pay for results. This makes it easy to see which campaigns are working and which ones need to be improved.
• Scalable: CPA marketing is a scalable marketing strategy, meaning that you can easily increase your reach and sales by increasing the number of affiliates you work with.
• Low risk: CPA marketing is a low-risk marketing strategy, as you only pay for results. This makes it a good option for businesses that are new to online marketing or that have a limited budget.

If you're looking for a way to track your marketing ROI, reach a wider audience, and grow your business, CPA marketing is a great option to consider.

Here are some of the most common types of CPA marketing:

• Lead generation: This type of CPA marketing involves generating leads for a business, such as email addresses or phone numbers.
• Sales: This type of CPA marketing involves generating sales for a business.
• Downloads: This type of CPA marketing involves generating downloads of a product, such as a whitepaper or ebook.
• Signups: This type of CPA marketing involves generating signups for a service, such as a free trial or newsletter.
• Referrals: This type of CPA marketing involves generating referrals for a business, such as when a customer refers a friend or family member to the business.

Where to find CPA Networks to Join?

The are numerous Cost Per Action (CPA) networks, covering a vast array pf niche markets. A good place to find an offer that you like and its associated CPA network is OfferVault.com

OfferVault is a CPA aggregator, a place to look at and review offers and sign-up to the offers associated CPA network. OfferVault is not a CPA network. It is a place to find offers and CPA networks.

No matter what type of CPA marketing you choose, it's important to find a reputable CPA network and to work with affiliates who have a good track record of generating results. Two popular CPA networks are MaxBounty and CPAGrip. By doing your research and choosing the right partners, you can make CPA marketing a successful marketing strategy for your business.