San Francisco - Google posted a 21 percent jump in second-quarter revenue on Thursday and an 11 percent rise in profits as its online advertising business continued to boom.

The search engine powerhouse reported net income of 2.79 billion dollars for the period ending June 30, up from 2.51 billion dollars a year earlier.

For the first time, Google included sales of Motorola in its financial figures, giving it record revenue of 12.2 billion dollars. Even without Motorola's contribution, Google sales rose 21 percent compared to a year earlier.

“Google standalone had a strong quarter with 21 percent year-on-year revenue growth, and we launched a bunch of exciting new products ... in particular the Nexus 7 tablet, which has received rave reviews,” Google chief executive Larry Page said.

“This quarter is also special because Motorola is now part of the Google family, and we're excited about the potential to build great devices for users.” - Sapa-dpa