Boston's City Hall Plaza is set to turn into a massive techie start up celebration soon.

Boston TechJam 2014, a kind of giant block party for entrepreneurs, venture capitalists, legal, PR and marketing experts - starts June 12.

Mark Lorion of TechJam says organizers expect 3,000 people to show up.

"Seventy-five companies and start ups will be exhibiting, and they'll be showcasing some of their innovations and hosting fun festival-style games that makes networking fun and easy," he said.

Learn more about Boston TechJam here.

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