He didn’t tell us much, but usually when serial entrepreneur Greg Isenberg launches a startup it’s reason to pay attention.

Isenberg, who previously founded and sold his “video concierge” app 5by to StumbleUpon in 2013, is ready to start a new company. StumbleUpon ended up shutting down 5by in December, 2015.

In a Medium post, the Montrealer-turned-San Franciscan was vague in revealing what exactly Islands will be. Still, he said Islands would be something that “to learn, to collaborate, to stay in touch, to build rapport and to build movements.”

The internet was supposed to be this place where anyone could be heard and anyone could instantly connect with people you wanted to know, not just the people you went to high school with. Somehow we lost our way.

From people with cancer to college frats to people who love english bulldogs to your high school alumni, Islands is your new home. It’s like a party where the music, food and people are just right. It’s about forging new relationships, laughing, crying and learning about yourself.

-Greg Isenberg, Islands

Isenberg told interested people to sign up on Islands‘ waitlist, or head to its Twitter.

The entrepreneur said he was inspired by a girl named “Steph.”

“Steph had been recently diagnosed with lung cancer. She found support in a email list she started, “young people with lung cancer”. 50 people traded stories, photos and inspirational quotes. With community comes support, with support comes hope and hope is ammo for the fight against cancer. That little group literally saved lives,” wrote Isenberg.

“It got me thinking — finding your people unlocks human potential. Life is defined by the people you spend time with. When like-minded people come together, extraordinary things happen.”

With such a large list of social media followers, Isenberg was naturally able to garner enthusiastic comments on Facebook, despite revealing little about what his business would do.

“Greg I love it. Every tribe needs an island,” wrote one commenter. Another congratulated him.

Oh, what ever could Islands be? We’ll all find out soon enough.