How are you going to get to a quarter billion in revenue? Yes, geotargeting for Promoted Tweets is nice, but I don’t see brands chomping at the bit. And branded pages are a cool idea, but are you going to charge for them? Possibly follow the Facebook Page advertising model?

And now you’re testing a new revenue product — third-party text ads that appear below the trending topics column. Well, that’s a smart use of dead space, but we’re talking incremental revenue at best.

There’s another problem, buddy — sure Vice President of International Strategy Katie Stanton just boasted about 200 million accounts, but that doesn’t equal 200 million users. The microblogger’s zombie problem is right out of “Night of the Living Dead.”

Last month, Cornell University and Yahoo! Research suggested 0.05% of its users are responsible for half of the tweets — a little math figures that to 10,000 highly active members. Combine that with a recent Pew study suggesting only 8% of American Internet users are tweeters and Twitter sounds like kind of a small community to be dropping major ad dollars into.

However, Twitter’s data is quite valuable for social monitoring purposes, hence why the company charges fees for data streams through Gnip. As more brands look for social monitoring services, requiring the purchase of more streams, could this become enough of a revenue driver to offset lackluster ad revenue?

Or should Twitter reconsider that rumored $10 billion acquisition offer from Google? Now those guys know how to soak up the ad revenue.

During ad:tech NYC, our AdJuggler team conducted an informal poll of more than 150 attendees, asking two simple questions. First, are you seeing mobile ads? And, second, have you ever clicked on a mobile ad.

Keep in mind too, the ad:tech crowd is not mainstream America. This is a young, primarily urban group, and definitely first-movers on mobile and other technology trends. Of the attendees interviewed, however, less than 25% said they’ve never seen a mobile ad, and less than 2% have ever clicked on an ad (2 out of 150) — and one of those clicks was by accident.

Yes, the survey may lack statistical significance, and yes, there may be insights on ad consumption based on device, number of apps downloaded, etc., but, candidly, the usage results were so low that it confirmed what many of us secretly believe:  mobile advertising is still in its infancy. Early advertisers on mobile are most likely doing it as true pioneers or as a reaction to industry peer pressure.

That said, we at AdJuggler are fans of mobile, mobile apps, real-time information, and, especially, the promise of geo-targeted messaging. To truly accelerate mobile ad consumption up the adoption curve, the industry must continue pushing in a few directions:

1. More Engagement.  Mobile junkies undoubtedly have 20-40 apps downloaded, but, in private, would admit they only use 2-3 apps daily. Unlike online, this skewed usage on mobile makes sense due to limited mobile “real estate” and the cumbersome nature of random site and app surfing. The top decile of mobile apps will dominate media.  So, a quality brand like Pepsi has two choices – advertise on the top sites or create a mobile environment so engaging through games or social that it achieves more cost-effective in-app branding.
2. More Rewards. In many respects, phones and apps are nothing more than adult forms of a Nintendo DS.  If users can win prizes, points, and coupons by engaging in an app, a game, or a contest, the volume of app consumption will rise dramatically.  Mobile-based 2D/3D bar code adoption, mobile payments, etc., will be big drivers here too.
3. More Real-Time.  As with mobile hype, I believe the hype around digital privacy is overstated.  Most people I know like relevant content and advertising, as long as it’s not “too personal” and their PII is not shared.  GPS provides a huge opportunity for real time promotions and couponing that could be ‘pushed’ in the form of mobile ads, to your mobile email, and even in-text if authorized. I am curious where Groupon and LivingSocial are in deploying GPS-driven offers.

Personally, I’ve never clicked on a mobile ad. I can’t imagine, if I’m sitting in a physician’s office waiting for my appointment, why I’d want to click on an ad for Chevy.  The ads themselves are often difficult to read and the mobile landing pages for the advertisers are worse.

That said, I love Toys R Us’ recent announcement this week to offer a couponing app that generates coupons, which a user can then validate at its in-store kiosks.  This is where the platform needs to go.

Enabling crazed fans to get their “Twilight” fix, Unicast produced two rich media campaigns on MySpace that deciphered the location of the user and offered links to buy tickets at a local theater.

This campaign is the result of a new partnership between Unicast and the Aura Group, which develops web and wireless products. Fueled by Aura’s MovieConnect technology, Unicast’s Movie Finder allows users to post showtime information to Twitter accounts and send directly to mobile phones.

It’s also the latest example of the potential of geotargeting through social media. Online ticket marketplace Fandango sold 18% of the opening weekend tickets for “New Moon” and the film was its biggest advance seller of all time. Expect to see more of this as Twitter and Facebook work on their localized features.

Also expect to see more “Twilight” movies if their going to rake in so much adolescent cash. Me, I’m going to stay at home with my “Buffy the Vampire Slayer” DVDs.

The listings are customized to the user’s most recent search for homes, down to the neighborhood, home size, price range and attributes.

The ads, dubbed Home Page Featured Listings, features three graphical ad units at a time – two sponsored by national brands and one sponsored by a regional brokerage. Because the ads are targeted to a user’s most recent search (versus their geographic location), advertisers are able to target all buyers, including those who may be relocating or purchasing a second home, the company said.

“At Zillow, we recognize that in today’s challenging housing market, national and regional brokerages need performance-based online advertising solutions that deliver real results for their agents and sellers, while strengthening brand awareness,” said Greg Schwartz, vice president of ad sales at Zillow. “Zillow’s new Home Page Featured Listings are another example of our commitment to providing high value, high return advertising solutions for real estate advertisers.”

Century 21 is the first national brokerage to sign up for the program. Zillow.com gets more than 8 million visits a month.