There are many advantages to email marketing as you can target your audience, it is easily shareable, also depending on what method is use it is not too costly, you can increase brand awareness. You can also track and measure your click rates and open rates on each individual email campaign. The higher the open rates, the more successful the campaign is. You can also learn what links or posts had the most click through rates on that individual campaign. You can use this to figure out what posts are more popular and which ones are not, this allows you to improve on the contents and links inserted into future campaigns.