JibJab Media has received an initial round of funding from Polaris Venture Partners, reports paidContent. No details are available about the amount of the investment, but it will reportedly be used to "significantly expand" original comedy programming on the JokeBox social-networking site.

The intent regarding JokeBox is to "build a comedy network that extends beyond the browser to mobile devices and, ultimately, IPTV," JibJab cofounder and CEO Gregg Spiridellis is quoted by paidContent's Staci Kramer as saying.

Polaris founder and managing partner Jon Flint is joining the JibJab board.

Previous coverage:

- JibJab Launches JokeBox Social Network.
- New JibJab Video '2-0-5' Is Year-End Round-up.
- JibJab Founders to Launch Funny MySpace Equivalent
- The Lowdown on Contagious Media's Viral Video Contest.
- JibJab Creators to Produce Anheuser-Busch Spot
- JibJab Founder: Email List Root of First Viral Success
- New JibJab Viral Sponsored by Intel
- New JibJab Parody via Yahoo
- JibJab Launches Santa Ditty, Signs with Yahoo
- JibJab Creator: We Just Wanted to Break into TV, Movies
- JibJab Releases Newest: 'It's Good to Be in D.C.'
- Popular Bush/Kerry Satire More Popular than Real Thing