Through initiatives such as classified ads and promote your post for $7, it creates local communities within a massive global platform.

Families. Friends. Games.

That's Facebook, and that's powerful.

While Twitter can do some of most of the above, that's not its bag.

You can build a brand on Twitter, no doubt, but it delivers immediacy.

It's a much simpler and straightforward platform. Twitter really is the modern-day newspaper. It's a daily habit. It's the place a growing number of people go when news breaks.

Twitter, in association with advertisers, has only begun to scratch the surface on how to take advantage of this instantaneity, this relevancy.

When salespeople sit down with clients, they need to bring solutions.

It's so much easier to close a deal when you can tell a Proctor & Gamble ( PG), "Hey, listen, you're going to sell and market maxi pads differently than you do Duracell batteries and we have multiple options across Twitter and Facebook to put a smart and comprehensive package together."

There's no sense in having the Twitter people in one day, the Facebook people in the next, making a choice between the two or, worse yet, buying both in what ends up a disjunctive ad campaign.

I doubt they will, but Twitter and Facebook best serve themselves and one another by uniting on the advertising front. If it doesn't happen via merger, maybe a sales and marketing partnership makes more sense.

Don't worry about federal regulators.

How can they possibly stop a move between the two firms?

Mobile advertising is in its infancy. Beyond less than a dozen early adopters, we don't even know what other key players will rise in the space over the next several years.

If Google ( GOOG) can run roughshod over search, how can anybody, particularly horribly inconsistent regulators, balk at Twitter and Facebook making social ad buys more convenient and effective for companies in the Fortune 100 through small business?

A Twitter-Facebook union almost makes too much sense.

At the time of publication, the author had a position in FB.

Rocco Pendola is TheStreet's Director of Social Media. Pendola's daily contributions to TheStreet frequently appear on CNBC and at various top online properties, such as Forbes.

If you liked this article you might like

Why Amazon's Reported Smart Glasses Might Be Just a Niche Product -- For Now

PayPal's Venmo Gets Ready to Take on Apple

How PayPal's CEO Uses Military Level Karate to Succeed in Business

Yes, PayPal CEO Actively Practices Martial Arts

7 Essential Rules for Investing in Tech Stocks