People:

• Departing Microsoft visionary Ray Ozzie sees "post-PC" world.

Ad Technologies:

• Adobe works up new ad format for smartphones.

• Testing a bar code technology for 2-D smartphones.

Search:

• Google Instant may provide instant revenue increase.

Mobile Marketing:

• AdMob begins running interactive video ads on Android devices.

• Apple Store app gains Genius bar check-ins, more.

Business Strategies:

• Autotrader.com buys Kelley Blue Book.

• Digg lays off 37% of staff.

• Travel companies create FairSearch.org to stop Google acquisition.

• Google's response.

• Did Digg game its own system to benefit its publisher partners?

Legal/Regulatory:

• Amazon wins fight to keep customer records away from tax authorities.

Social Media:

• Lagging in adoption Gowalla makes a play for revenue.

• Mark Zuckerberg asks his first Facebook Question.

Research & Stats:

• 44% of top online retailers have begun holiday email marketing.