Search:

• Google's search cleanup has big effect.

• Google kills eHow competitors, eHow rankings up.

Social Media:

• All of Facebook’s Like buttons on third-party sites now publish a full news feed story.

• How influenced should you be by the rising obsession with 'social influencers'?

Ad Technologies:

• Copy testing coming to digital marketing.

Online Ad Market:

• Cutting out middleman to sell small ads online.

• Google CEO: display ad market could become $200 billion biz.

Mobile Computing:

• Verizon Wireless CEO says iPhone sales strong.

• Moonlighting within Microsoft, in pursuit of new apps.

Pearls of Wisdom:

• Social media experts explain best campaign practice.