San Diego - Intercasting Corp., a provider of mobile social networking technology, announced on Tuesday that it has raised $12 million in its second round of venture capital financing, led by Venrock Associates.

Newton, Mass. - ExtendMedia, a provider of online video distribution technology, has raised $12 million in its second round of venture capital financing, led by Venrock Associates and TVM, PEHub.com reported.

New York - Digital Railroad, an online marketplace for buyers and sellers of professional photography, announced on Monday that it has raised $10 million in its second round of venture capital financing, led by DN Capital.