Not many entrepreneurs have a motor like Kevin Ryan’s. Kevin is best known for his work as CEO at the on-line advertising firm DoubleClick, which he grew from a 20 person start-up to the largest Internet company in New York at the height of the dot-com boom.…

Download the MP3. Not many entrepreneurs have a motor like Kevin Ryan's. Kevin is best known for his work as CEO at the on-line advertising firm DoubleClick, which he grew from a 20 person start-up to the largest Internet company in New York at the height of the dot-com boom. After escaping the ensuing bust in an arguably improved strategic position, the company has since changed hands twice. In June 2005, the company was sold to the private equity firm of Hellman and Friedman for $1.1 billion and has made headlines yet again with its recent acquisition by Google for an astonishing $3.1 billion. Yet, this success has not slowed Kevin one bit. Since departing DoubleClick, he has already launched three start-ups, with plans for a fourth this summer. Listen in, as Kevin describes his DoubleClick experiences in both boom and bust, outlines his new start-ups, and explains why now is as good a time as ever to start a company, especially in the Big Apple.

Marketing a startup is tricky business. Every entrepreneur faces the dilemma between allocating time to improving the product and marketing the product. If the two can be mixed just right, then perhaps sterile marketing can go viral. We tackle that issue in part 2 of 3 of our very own Venture Voice Startup Workshop coverage in New York City.…

Download the MP3. Marketing a startup is tricky business. Every entrepreneur faces the dilemma between allocating time to improving the product and marketing the product. If the two can be mixed just right, then perhaps sterile marketing can go viral. We tackle that issue in part 2 of 3 of our very own Venture Voice Startup Workshop coverage in New York City. David Hornik of August Capital leads the session, but he doesn’t finish uninterrupted as the entrepreneurs on the panel jump in.

Before the rise of the Internet, cable TV was the new form of distribution remaking the entertainment business. Life-long entrepreneur and former jazz producer Fred Seibert pioneered that field, and is known in the industry for branding MTV (remember their ever-changing animated logo) and Nickelodeon (remember Nick-at-Nite).…

The battery is an afterthought for most inventors. All the fun seems to be in developing a device, not in powering it. But when was the last time you cursed your phone, camera or podcast player because it ran out of batteries?…

Premal Shah believes your last name doesn’t need to be Gates or Rockefeller in order to make a real dent in global poverty. After leaving his job as a Principal Product Manager at PayPal, it has taken Premal less then a year to make good on Kiva’s pledge that all it takes to become a micro lender is a credit card and access to a computer.…

Real business networking takes place in the country club, at the chamber of commerce and on the golf course. After all, the Internet is just for friending strangers on MySpace and poking friends on Facebook. If you said all that to Reid Hoffman, he might think twice about adding you as a contact in LinkedIn, the business networking site he started that connects over seven million professionals.…

If technology entrepreneurs have a guru, it surely must be Guy Kawasaki. For about two decades, Guy’s been advising entrepreneurs in one way or another. First as an evangelist for Apple, he courted software entrepreneurs and developers to write code for the Macintosh.…

Download the MP3. There are not many entrepreneurs who have spent their entire 10-year careers starting new ventures in online media, but Jason Calacanis just can’t help himself. Jason rode the dot com wave in New York by starting Silicon Alley Reporter. His publishing company Rising Tide Media grew to $12 million in sales. Unfortunately Jason also rode that wave down after the bubble burst. He ended up selling his first business to Dow Jones for a lot less money than he could have gotten before the crash. Undeterred, Jason started Weblogs, Inc. to make money by selling ads in blogs they pay people to write. In only 18 months he grew the business to a point at which AOL (TWX) bought it for a reported $25 million. Now he’s re-launched Netscape as a news website where users vote for what’s important. Jason’s caused a lot of controversy by paying top users of competitive sites such as Digg (whose CEO Jay Adelson was on our last show) to switch to use his service. Hear what’s been driving Jason’s entrepreneurial career.