It is nice to see some actual Twitter numbers. According to Techcrunch, in March Twitter had 1+million users of which 200,000 were active each week. The active users send an average of 15 tweets a day. That's well above my average. And finally, there are 4 million connections between Twitter usres. You do the math to find out how many connections per user. Now I wish I knew who these actual users are. What are their demographic and psychographics?
On a loosely related note, LinkedIn told Silicon Alley Insider that its earning $75 CPMs (cost paid per thousand viewers) for advertising in the US and $50 CPMs in the U.K. Now, LinkedIn certainly has a more targeted and potentially valuable audience than Facebook and MySpace but those CPM numbers sound really high. Still its a sign that niche networks with more focused audiences matter. LinkedIn has 17 million users in comparison to Facebook's 70 million and MySpace's 200 million. CPMs on Facebook and MySpace are much lower.

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On a loosely related note, LinkedIn told Silicon Alley Insider that its earning $75 CPMs (cost paid per thousand viewers) for advertising in the US and $50 CPMs in the U.K. Now, LinkedIn certainly has a more targeted and potentially valuable audience than Facebook and MySpace but those CPM numbers sound really high. Still its a sign that niche networks with more focused audiences matter. LinkedIn has 17 million users in comparison to Facebook's 70 million and MySpace's 200 million. CPMs on Facebook and MySpace are much lower.
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