What is PPC in seo and how to use?

Read this -> To SEO or To PPC?

Just to add that SEO and PPC are quite different, perhaps PPC can be part of SEO (Search Engine Marketing) but it cannot be part of SEO.

In pay per click, advertisers only pay when a user actually clicks on an ad to visit the advertiser's website.

PPC is a method where you pay for guaranteed listing over the search engine results. In order to get higher traffic from PPC, you must bid on a high traffic keywords.

PPC is a part of SEM and you have to search for keywords that are related to your business and then u make ads using google adwords program. You can choose as many keywords for your site as you wish for and your ads are displayed for all those keywords and then you get users.

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PPC would be SEM (search engine marketing)..not SEO. Do some google searches and you'll find some good information

PPC can be useful in testing search frequency on keywords and which search terms might actually generate traffic for you - if you have the appropriate budget for it, of course.

PPC will be very useful to business which makes us to blew up in Internet Marketing.

PPC = Pay per click, publishers gets paid for clicked ad, and advertisers gets traffic and promotion and advertising of their websites.

Go to Google learning center and you will understand everything.