eMarketer makes 10 predictions regarding online advertising and marketing in the new year, on topics ranging from ad spend to e-commerce to mobile TV.

Online ad spending will reach nearly $20 billion in 2007 - 19 percent more than in 2006, according to eMarketer's forecast. Online video advertising, meanwhile, will generate lots of hype - and some revenue, with internet video ad spend totaling only $775 million in 2007, in part due to a shortage of premium inventory.

Social networks, however, will account for $1 billion in ad spend, more than double last year's amount, according to the forecast. Digital downloading of videogames are also predicted to take off, with that distribution method accounting for some 22 percent of gave software revenues.

B2C online sales will reach a record $223 billion in the U.S., with retail accounting for $132 billion and travel $91 billion. eMarketer also predicts that the number of African-American and Hispanic internet users in the U.S. will reach 37 million, up from 35 million in 2006 - more than the entire population of Canada (33 million).