Business 2.0 says social networking site LinkedIn is reaching its tipping point.

“For many, it’s become irresponsible to not invite business associates into your LinkedIn network,” says Mikolaj Jan Piskorski, an assistant professor at Harvard Business School who specializes in sociology and strategy. “When that kind of cultural inflection point occurs, which is what LinkedIn is going through now, that is when things really begin to take off.”

Here’s my LinkedIn profile.

About David Burn

Co-founder and editor of AdPulp. I wrote my first ad for a political candidate when I was 17 years old. She won her race and I felt the seductive power of advertising for the first time. I worked for seven agencies in five states before launching my own practice in 2009. Today, I am head of brand strategy and creative at Bonehook in Portland, Oregon.