An internet advertising / publishing Renaissance is quietly happening in Southern California 10 years after the dot com bubble burst. These internet companies will have somewhere between $10-250M in annual revenue in 2009 and are great M&A / IPO candidates. The combined list of companies have raised in aggregate of well over $1B of capital and employ 2000+ people in Southern California. These companies will ultimately spawn off new entreprenuers when liquidity is realized for shareholders. Soon Southern California just might have have a sustainable ecosystem of investors and entrepreneurs to compete with regions like Silicon Valley and Boston. This list is ranked in order of capital raised from investors.
SoCalTech.com was the source of the investment information.
By the way, the URL for #6 is actually hydranetwork.com ;)