According to HubSpot, social media has a 100% higher lead-to-close rate than outbound marketing tactics. That could be because every post you make and each interaction you have on your social media channels is an opportunity to convert an interested lead into a happy customer. By building a report with your leads and customers and posting valuable content on a consistent basis, your brand can work to improve trust and credibility, which leads to more conversions.
It also shows that you need substantial traffic to make much money through advertising. At a CPM Of £10 with 2 ad units on the site, you would make just £4,000 per month even with a million page views per month for which you serve paid ads to 20% of the audience. Set this to 100% if you are selling all your ad inventory, as for example through Google Adsense.