Cache
Cache Memory
Call to Action (CTA)
Cascading Style Sheets (CSS)
Click-through
Click-through rate (CTR)
Click to Call
Cloud Computing
Content sponsorship
Contextual advertising
Cookie
Conversion rate
Cost per Action (CPA) 1
Cost per Acquisition (CPA) 2
Cost per Click (CPC)
Cost per Day (CPD)
Cost per Mille (CPM)
Cost per Thousand (CPT)
