Goldberg has held senior executive positions at such companies as Sony Music, Red Light Management, and Razor & Tie Entertainment.

As a music executive and manager, he has worked with a wide range of artists and producers, including Mos Def, Dee Dee Ramone, David Foster, Dave Grohl, Martin Sexton, T Bone Burnett, Mark Batson, Willie Nelson, Warren Haynes, Kenny Chesney, Peter Buck, Mick Taylor, Barrett Jones, Wally Gagel and Rage Against the Machine.

[5] From 1991 to 1996, Goldberg served as Director of Artists & Repertoire for Sony/ATV Music Publishing in Santa Monica, CA where he built the company's publishing profile by signing early publishing deals with such artists as Martin Sexton, Rage Against the Machine, Candlebox Chixdiggit, Menthol, Gus Black, and projects related to Pearl Jam's guitarist Stone Gossard’s Loose Groove label, founded by Regan Hagar, including Brad, Satchel, Pigeonhed and Devilhead, featuring Kevin Wood, brother of the late Andrew Wood a founder of Pearl Jam.

[6] From January 2000 to March 2001, Goldberg was the Sr. Vice President of Content at Tonos Entertainment, a large scale online music company based in Culver City and founded by producers David Foster, Kenny "Babyface" Edmonds and songwriter Carole Bayer Sager.

Circulating podcasts of original radio programming and a daily “hoooka of the day” to over 100,000 subscribers for a three-year period, Goldberg helmed an artist discovery platform spotlighting dozens before they were signed by record deals and known to the public, including Shiny Toy Guns and The Submarines.

[9] The company maintained distribution and marketing agreements with entertainment companies such as Disney, CBS, Reveille/NBC, American Express, Ingrooves, The European Music Office, The Canadian Independent Record Production Association (CIRPA), V2, Associated Production Music (APM), IODA, Yangaroo, Live Universe/Live Video, Songcatalog, Mediaguide, MECA, and ASCAP.

"[12] A New York Times article covering the controversy helped lead to a national discussion on the public's expectations for social networking sites.

In his review, Don Shirley of the Los Angeles Times said: "There is talent here: Writer Justin Goldberg [...] is tuned into the pitiless chatter of extended adolescence.

Utilizing a process that typically begins with digitally manipulated photographs transferred to cotton canvass, he creates a mood of depth and antiquity by then applying water-soluble crayons and acrylic paint.