There are plenty of paid traffic sources on the web from where you can buy targeted traffic to your website. The best thing about online advertising (unlike television, radio, print, etc.) is that it’s totally accountable and you get to know the exact returns of every single dollar that you are spending.
Online advertising is a multi-billion dollar industry and the digital ad spending in the U.S. is all set to surpass television ad spending. Paid advertising on search engines and social media accounts for over 50% of the total ad spend (dominated by Google, Microsoft, and Facebook).
The good thing about online advertising is that it’s super easy to kick-start an ad campaign and it could attract a lot of targeted traffic in the shortest span of time. But the bad thing is that it may be effective only in the short-term because when you stop your ad campaigns the traffic may pause.
However, online advertising is extremely flexible and efficient (in terms of ad targeting, spending, and tracking) and it basically means that if you have a solid marketing strategy then your online ad campaigns can bring in higher return on investment for the short-term as well as for the long-term.
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Source : https://www.minterest.com/paid-traffic-sources/