San Francisco Mayor Gavin Newsom announced Tuesday morning that he is officially running for Governor in the 2010 California election.

He announced it not by holding a press conference, but through social networking Web sites such as Facebook and Twiitter:.

On his Twitter, it reads "It's official- running for Gov of CA. Wanted you to be the first to know. Need your help."

Newsom might need help as other candidates considering a run include Attorney General Jerry Brown and Sen. Dianne Feinstein.

Lt. Governor John Garamendi has dropped out of the governor race as of Wednesday and will instead try his hand at the U.S. House during the California special election.

On the Republican side, eBay's former CEO Meg Whitman is still in the exploratory stages as well as state Insurance Commissioner Steve Poizner.

Newsom premiered his announcement video on his Web site, which is also on YouTube as well.

The video can be seen by clicking the link: www.gavinnewsom.com.