Category Archives: Former Students

SNS for advertising

Jenna Camann, a former student, sent me a very nice email from her new digs in Charlotte, NC. Jenna is mad about NASCAR and embarked on some sort of Arthurian multiyear quest to win herself a job there. Maybe she will tell me the whole story someday. Go Jenna!

Here is what she said:

There is a lot of buzz in the past two weeks about social networking sites which keep reminding me of class. The sports business quote of the day today was even from a Sports Illustrated exec mentioning that on-line social networks are “like sports talk radio online, without the commercials. It’s really a very engaging community.”

Not very surprising that they sports executives would stumble into networks and the living web one of these days. A couple of thoughts come to mind.

1) Will a sponsor’s interest in sales and control of the site collide with users’ expectations of control?

2) How many online communities can I participate in? Is there a saturation point for SNS? I bet most people only use 1-2 at most. I use facebook and LinkedIn mostly. Instead of making lame SNS that will sputter, they should see about plugging into existing ones somehow. Similarly, can they find some tools that will make a sports SNS sticky for sports fans?

3) I don’t know, but should, if anyone is making money hosting SNS?

4) With the coming of Second Life, have SNS already peaked?

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Filed under Former Students, Marketing, Social Network Sites, Social Networks

Don’t watch what you eat- What what your friends’ friends eat!

A former student of mine, Peter Kasper, very astutely caught the fascinating result in this news article. Obesity is a social contagion. No surprise. But, the effect is stronger for friends in your network than for family AND neighbors. Whats more, even two degrees away has an effect!

Your best friend could be making you fat – Diet & Nutrition – MSNBC.com
The effect held for three degrees of separation. If a person became obese, their friends were more likely to become obese, but also friends of friends.

The original research comes from the New England Journal of Medicine and is by Nicholas Christakis and James Fowler. They used a very original research design. A long term health study of Framingham, MA, had each person list alternate contacts. As the sample included almost the whole town, these alternative contacts constitute a social network for whom they also had health data from 1948-1971. Very Clever.

The big result is that if one person names another as a contact (unidirectional tie) then if one became obese in teh 32 year period, the other was 57% more likely. If the tie is bidirectional- they each listed each other- then the odds of obesity in one if the other became obese was 157% greater than the baseline risk. WOW. Add a typical degree if clustering and transitivity, and you can see how one fat friend can lead to straining elevator cables in short order. Continue reading

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Filed under Former Students, public health, Social Networks