The results are in, and Facebook (META 0.43%) didn't contribute anything valuable to the Cyber Monday mania.

According to Adobe Systems, social media accounted for just 2% of total advertising referrals on Cyber Monday. For those keeping track at home, Cyber Monday was the busiest day for online shopping in history. Companies like eBay (EBAY 1.32%) and Amazon (AMZN 3.43%) saw sales increase more than 50% from last year. Although social media saw a 100% increase in year-over-year referrals, it still doesn't bode well for its advertising effectiveness.

Brand association fail
Simply put, Facebook is not a primary shopping tool in the minds of its users. They log on with the intent of consuming media, making Facebook a form of cheap entertainment. This helps explain why social media was barely utilized on Cyber Monday. Boil it down and that's the key difference between Facebook and Google's (GOOGL 10.22%) core advertising model.

When Internet goers utilize Google Search, they have a specific intent, giving Google a better opportunity to serve relevant advertisements. This reason alone is why Google's advertising effectiveness is three times greater than the industry average.

But there's potential!
Facebook may know intimate details about our lives, but it knows far less about our preferences and spending behaviors. Unless users outright proclaim how they feel about a brand or a product, it's proven to be more challenging for Facebook to serve relevant ads. According to one study, Facebook's conversion rate is nearly half the industry standard. This all didn't matter when Facebook was a private company, but adding shareholders to the mix has brought on a sense of urgency to ramp up its business model.

The shotgun approach
Facebook has adopted a philosophy that believes more bullets aimed at a target will increase the chances of success. What started as a social network has now transformed into a fully fledged advertiser. The ads have been continuously ramped up, with the latest being Suggested Posts. It's basically another Sponsored story within your News Feed. I think it should be increasingly clear that the News Feed has become Facbook's path to squeeze a few more pennies out of its users.

Facebook ought to be careful how many bullets it shoots, because if it fires too many, it may one day regret it. 

Foolish takeaway
Without question, social media is an invaluable tool for society because it established an openness and availability of information like never before. But what's valuable for society doesn't always translate into a great investment. There's a long way to go before social media can become a highly coveted advertising platform. And until that happens, it remains to be seen if it's even possible at all.