！
Those who want to publish an email newsletter on education, click here!
Literal
Education [genitive-の] e-newsletter [object-を] want-to-publish people [topic-は] this-place!
A web ad/link. メルマガ is the clipped form of メールマガジン ('email magazine'), meaning an email newsletter — a staple of Japanese web culture from the early 2000s onward. こちら is a direction/location word meaning 'this way,' 'this side,' 'here' — used politely to direct someone's attention. ~方はこちら ('[description]-people, [click/come] here') is a standard web-ad template, with こちら functioning as an implied link target. 発行する ('to publish, issue') is a formal verb for issuing newsletters, bonds, or other circulated documents.