In this which is the best?

[samuelroy]

In this which is the best PPC or SEO for online marketing?

[frank]

These are two both different things. And have different effects. So, marketers use them for different purposes. Its useless to say which one is better.

[jenniferravon]

We can't differentiate both of these. Both have different purpose and techniques. Today digital marketers use both of these for marketing.