Twitter has recently picked up some of the Adword & AdSense ‘street wisdom’ Google has long since developed, and with a first sizable shot at making cold-hard advertising revenue, this Valley start-up is beginning to do some heavy marketing of its own.

But is it the right direction?  The Wall Street Journal looks at both sides of the fence, barring the hype behind Twitter’s marketing potential.

“In recent weeks, Twitter began rolling out a redesign of its website designed to give advertisers a better platform to showcase photos or videos, said Evan Williams, Twitter’s chief executive.”

Offering marketers “Promoted Tweets” that will be placed as the first relevant result users find while searching site, Twitter strongly believes in the somewhat overwhelming potential of its untainted advertisement market. Twitter also offered its potential clients the ability to test their advertisement products on a trial-run.  Twitter is also gearing up for additional promotional tools, including Promoted Accounts for premium placement of recommendations for following brands, reports All Things D.

With 130 million searches in August alone, 160 million international users, a whopping 90 million new messages a day, and a 5% user-ad interaction rate, it’s no wonder.  Nonetheless, not everybody appears to be eager to jump head-in, and as The Wall Street Journal says, there’s a flip side to the coin.

”Twitter Inc.’s foray into advertising is receiving mixed reviews among marketers, underscoring the challenges of turning the popular micro-blogging service into a highly profitable enterprise.”

Potential will always be potential, and major enterprises will need to test the new grounds before throwing in a sizable investment in a Twitter ad campaign. Both the Web 2.0 and .com has witnessed a lot of over-eagerness regarding the new overpowering web-based advertisement trend.  Twitter has never failed however, and proved itself time and again,  managing to expand its reach with consumers and marketers, on a hefty social mobile scale.