The WSJ looks at the rise of wheelin’ and dealin’ from a truck.

Niche biz: music for cats.

What color was the dress? It doesn’t matter, because sales of the dress have risen 347% this week.

The rise of the YouTube famous.

Niche biz: Meet the guy who fixes Tom Hanks’ typewriter.

Good to know: How to start a successful craft beer brewery.

Niche biz: These doctors do house calls — for just $99.

Weird: cyborg cockroaches!

The rise of ‘smart’ everything: Fogo’s Smart Flashlight.

Another new niche: Manicube brings 15-minute manicures to the office.

Farm tech: this startup is building a model for the first high-tech cricket farm.

Air travel is changing: Cheaper flights, better food, and dog spas.

The final frontier for privatization: private spaceflight gets a new boost from Silicon Valley.

The financial crisis of 2008 changed everything for this entrepreneur.

Online: This business idea is Etsy on steroids.

Niche biz: Champions of The West Pinball.

One final niche: Painting his future one stroke at a time.

Ok, I lied. Here’s another niche: Sowing success Look to spring by starting plants from seed

Legalization opportunities: Is now the time to pounce on the pot business? Probably.