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The problem with hiring an arsenal of top sales and marketing executives when you don't have a proven customer model is that you're likely to burn through all that funding you worked so hard to get. Steve Blank's latest post entitled, It Must Be a Marketing Problem is a cautionary tale about a company that continued to scale up without knowing the needs of their customers.

The graying of the Facebook population seems to have continued according to new stats released today by iStrategyLabs. And while one might expect more of the site's now nearly 10 million users over the age of 55 to be Neil Young fans, his "Rock N' Roll Will Never Die" refrain seems to be falling through. The listing of the term "rock and roll" as an interest is down over 60% among Facebook users in the past year.

The statistics released today pertain to the 100 million U.S.-based Facebook users, which comprise nearly one-third of the site's entire user base. They seem to support a continuing trend for Facebook - the slow growth of young and marketable users joining the site compared with their elders. We took a look at the numbers six months ago and most of the indicators seem to be only growing stronger.

Social media data company Rapleaf has just completed a comprehensive study involving the demographics and behavior of webmail users. In the first part of their study, they looked specifically at age and gender data and revealed some interesting findings. For example, did you know that Gmail has more female users than male? And that Hotmail is the other way around? Meanwhile, AOL users are older...but maybe not as old as you think.

Oh how the mighty have fallen. The one time king of social networks, MySpace, now has the honor of being the site where the less affluent members of the online population stake their claims by way of bedazzled profiles overrun with auto-playing videos and songs. Meanwhile, the upscale, financially solvent users have moved on - and by moved on, we mean to Facebook, of course. At least those are the findings of the latest social networking study done by American consumer behavior analysis firm Nielsen Claritas.

"Teens don't tweet." Over the past few weeks, this fact has been reported time and time again by analysts, bloggers, and even mainstream media. Why the obsession with the teenage crowd on Twitter? Perhaps it's simply because adults can't believe that they, not teens, for once are responsible for the birth of an Internet phenomenon. But before all you adults get too comfortable with your Twitter dominance, take a look at the recent data from comScore. It appears that the youngest Twitter users - those in the 12-24 bracket - are now the fastest-growing segment of Twitter's population. So the kids don't tweet? Looks like they may start soon if this new data is to be believed.

How fickle are kids these days? Just when all the grown ups started figuring out Facebook, college and high school users have declined in absolute number by 20% and 15% respectively in a mere six months, according to estimates Facebook provides to advertisers that were archived for tracking by an outside firm. Facebook users aged 55 and over have skyrocketed from under 1 million to nearly six million in the same time period. There are more Facebook users over 55 years old today than there are high school students using the site.

Grandma and Grandpa showed up to have a conversation, but Billy and Sally were gone. Facebook cannot be excited about this.

Sysomos, a Toronto-based startup, officially launched its two flagship products this morning: MAP (which stands for 'Media Analysis Platform') and Heartbeat. Both products are incredibly powerful (but costly) social media monitoring and analysis tools. In many ways, it is probably best to think of MAP and Heartbeat as companion pieces. Heartbeat basically provides a subset of MAPs features and is somewhat similar to Radian6's social media tools, with a strong focus on making it easy for companies to track social media metrics. MAP, on the other hand, is a far more powerful and flexible analysis tool.

According to data compiled by O'Reilly's Ben Lorica, Facebook is currently seeing some very impressive growth outside of the United States. In Africa and Asia, for example, Facebook's active user base grew over 70% in the last 12 weeks, and in Indonesia, Facebook has finally displaced Friendster as the most popular social network.

With regards to the basic demographics on Facebook, women still represent the majority of users (51% vs. 45%), and while younger users still represent the majority of active users on the service, users over 55 are driving most of Facebook's current growth.

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As a website or blog publisher, you've likely often wondered, "Who is visiting my website?" Traffic stats are readily available, so you already know that your unique visitors are up this week, and average time on-site is holding steady, and you're slowly beating down that ugly bounce rate, but what you don't know is who these people are. Are they social media geeks? Are they stay-at-home moms? Are they 20-something males with an interest in extreme sports?

Last night, Nielsen Online reported that Twitter has now surpassed Facebook and others to become the fastest-growing site in the "Member Communities" category for the month of February. Although Facebook, the world's most popular social network, has more members than Twitter, that's not what this measurement is about - it's about growth. And Twitter is growing. It's growing like crazy.