Search:

• What big brands are spending on Google search.

• A pitched battle over bedbugs in online search advertising.

• Appeasing the Google gods.

Social Media:

• What advertising strategies work with social apps?

• Facebook shows your likes in common on profiles of other users.

• From viral video to Billboard 100.

• Twitter's mobile users have jumped 62% since April.

Virtual Goods:

• Marketing fanciful items in the lands of make believe.

Mobile Computing:

• Don't look for Adobe Flash on Apple's iPads, iPhones soon.

Biz Buzz:

• Pure-play Twitter startups attract 50% less venture capital and angel investment than last year.

Legal/Regulatory:

• British Advertising regulator making itself felt online.