David Umeh's rented SUV yanked to a halt in front of the glass-and-steel facade of CityCenterDC, glitzy home to Gucci and Dior and Hermes and the next customer of the marijuana revolution.

A young woman slid out the passenger side and strode up to a man still dressed in the sharp gray suit of a Washington DC nine-to-fiver waiting outside the centre's tony apartment building. He grinned as she handed him a bottle of apple juice with lemon and mint, for which he had shelled out upwards of $US55 ($A72). "Fresh-pressed," she told him, sticking to the script that Umeh had taught her.

A new chart from the Marijuana Business Daily show that America's four states with legal, recreational marijuana markets are going to have some company this fall - especially if the poll numbers in three key states hold up.

Normally, when a company based in one state wants to sell products in another state, it starts calling truckers. For Strainz, a Las Vegas marijuana company, it was more complicated.

By early 2015, Strainz’s owners knew they wanted to expand to Colorado and Washington, the states with the most normalized marijuana markets. Despite state laws that allow the sale of marijuana, it remains a federal criminal offense to ship it across state lines. And as Nevada residents, the ­husband-and-wife co-founders weren’t eligible to apply for business licenses in either state.

After a successful pilot program, the A.C.T. Now program will soon offer treatment for Californians with serious illnesses. Learn what it all means.

Harborside Health Center, the multi-state cannabis super-brand with claim to the largest dispensary in California, has cemented a partnership with United Cannabis Corporation to bring revolutionary and effective new cannabis therapies to thousands of patients in California. 

OK. So it’s not a tester job, duh, but Confident Cannabis is looking for front and backend developers in San Francisco and this is actually a chance to be part of a pretty cool social experiment, as much as being close to the green stuff.

As legislators across the world, most notably in the US, are taking another look at whether prohibition of weed has ever really made economic or social sense, Silicon Valley startups are doing what they do best – working out how to grab a piece of this growing market.

We can assume there were quite a few cheers when California passed Proposition 215 in 1996, becoming the first state to legalize marijuana's medical use, but 2016 could go down as the most remarkable year for the marijuana industry to date.

California’s Humboldt Distillery is the latest spirits producer to launch a cannabis-infused vodka, called Humboldt’s Finest.

Newly launched Humboldt’s Finest is infused with cannabis stavia

The vodka is infused with cannabis stavia and made with local and legally grown hemp, which is distinguished from marijuana by having a THC content less than 0.3%.

Humboldt’s Finest is distributed by Young’s Market Co. and the newly Breakthru Beverage Group and is available throughout California and Colorado.

Said to have a “unique botanical aroma”, “herbal character” and “smooth finish”, the vodka joins Humboldt’s range organic vodka and spiced rum.

As more states contemplate legalizing recreational marijuana, the businesses that pop up are going to need banking solutions. Fortunately for them, more US banks are becoming willing to dabble in the cannabis trade.

Over the last two years, the number of banks and credit unions open to dealing with marijuana businesses has increased by almost six times, the Associated Press reported, citing federal data. Back in March of 2014, only 51 banks and credit unions in the country were willing to deal with cash from pot businesses, but the number now stands at 301.

Tommy Chong of Cheech and Chong fame, the standup/movie/music icon, has added entrepreneur to his list of achievements. But the businessman is staying in character with the Tommy Chong we have all grown to know and love.

It's all about weed.

His latest product line is called Chong's Choice, and according to Instagram, it is "a national legal and medicinal brand you can finally trust."

In 2014, his new business venture in Colorado, where cannabis production and sales are legal, began manufacturing 2 products for distribution:

As millions of marijuana aficionados light up Wednesday at 4:20 p.m. in celebration of “Weed Day,” many are blissfully unaware of the increasing interest that investors with deep pockets are showing in their favorite psychoactive herb.

A green rush is on in the marijuana industry, with legal sales of cannabis rising by a billion dollars or more each year nationwide, according to one report, and venture capitalists pouring millions into marijuana enterprises ranging from computer software and social networks to storage bags, vaporizers and insurance.