If you want to improve SEO or SEM results for your eCommerce site, should you hire a marketing agency to help you? Or should you add an in-house SEO or SEM employee to your staff?

To help you with this decision, we looked at data from Glassdoor to see what salaries are being offered today for eCommerce SEO or SEM professionals.

We also took a deeper look into current job listings for SEO and SEM marketing positions so you can better understand what skills you’re getting if you decide to hire an employee in-house.
Source: Growth Hackers