SEM is the internet marketing technique that promotes the websites by increasing its visibility in search engine result pages (SERPs). SEM gives your website a well-optimized presence on the SERPs and makes your online business profitable. SEM is the best method to make your brand in the online marketing. SEM includes the process like pay per click, search engine optimization, and Social media optimization.

Pay per click is a unique idea to improve the traffic to your site. Pay per click is the method of advertising through which you make advertisement of your website on other famous websites. These famous websites charge the advertiser as the click they get, so it is termed as the pay per click.

The PPC is further classified into 2 techniques—

Adsense: This is a service of the Google that puts the advertisements on others' websites automatically. Google pays the website owners for publishing its ads.

Adwords: Google accepts advertisements for placement on others' websites. Advertisers pay Google for this service, and Google shares this revenue with the other website owners who publish these ads.

SEO is the technique or process through which you can improve your ranking in search engine results. This process involves the increasing of volume and quality of traffic to your website. The more ranking the site gets, it will appear in the first few pages and certainly this will help in getting more traffic to your website.

SEO includes the two separate techniques i.e. Onsite SEO and Offsite SEO

Onsite SEO: The onsite SEO includes the changes that you do to your website to be filed or indexed correctly by the search engines. This includes giving Meta tags, keyword optimization, addition of the unique title content, etc.

Offsite SEO: SEO techniques that are not done on your website to promote online business are called offsite SEO techniques. This includes backlinks from other websites, doing link exchanges, making forum postings, posting comments to theme related blogs, and buying links.

Social media is the online media where people talk, participate, and share through the internet. Discussion, feedbacks, voting, and commenting are the means through which people participate in the online media. The best way to market your website is through the social media. You can directly create an impact on the customers through the social media optimization. This type of marketing will bring you close to your customers. You can directly suggest solutions to the problems of the customers through the social media. One of the greatest advantages of the social media optimization is that you instantly get noticed. But, please take a great care while handling the social media because it may even lead to the negative marketing. So, please be very courteous while promoting your website.

These are the three building blocks for the profitable online business.