Seven cool hangouts
■ Web Innovators Group attracts several hundred people to the Royal Sonesta Hotel in Cambridge to see short demos from 10 start-up companies. The next one takes place June 13. Information at webinnovatorsgroup.com.
■ OpenCoffee is held every Wednesday morning from 8:30 to 10:30 at Voltage Coffee and Art in Kendall Square. Brings together tech entrepreneurs, and occasionally investors, over espresso drinks.
■ Investors dole out advice during “office hours,’’ and entrepreneurs drink free beer while talking business models, at the Venture Cafe in Kendall Square each Thursday afternoon. The cafe plans to move to street-level space, and stay open seven days a week, later this year. Visit venturecafe.net.
■ HubSpot.tv is a live talk show about new marketing strategies; it is webcast Friday afternoons from the East Cambridge headquarters of HubSpot. The public is welcome to be the studio audience, and there are usually drinks, snacks, and games afterward. Go to hubspot.tv.
■ DartBoston’s Family Dinner is an invitation-only event that brings together young and first-time founders with more experienced entrepreneurs and investors for cocktails and dinner. Information about the family dinner and other events targeted at young entrepreneurs at DartBoston.com.
■ A free event for people involved in developing software for mobile devices, the next Mobile Monday Boston gathering happens May 9 at the MIT Museum. Visit momoboston.com.