De or het internetmarketing?

The correct Dutch article is:

de internetmarketing

Rule Words ending in -ing: almost always de. See the rule
Meaning (Dutch) aan de man brengen van producten of diensten via internet

How to use internetmarketing

the internetmarketingde internetmarketing
this internetmarketingdeze internetmarketing
that internetmarketingdie internetmarketing
our internetmarketingonze internetmarketing
your internetmarketingjouw internetmarketing
every internetmarketingelke internetmarketing
which internetmarketing?welke internetmarketing?
a big internetmarketing / the big internetmarketingeen grote internetmarketing, de grote internetmarketing

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).