Search:

• Google begins indexing Facebook comments.

Mobile Marketing:

• Mobile Theory launches mobile ads for non-mobile sites.

Online Ad Market:

• Adknowledge buys Facebook ad specialist AdParlor.

Mobile Computing:

• Teachers favoring iPads as educational tools.

• Gmail app for iOS getting closer, report says.

• Can the Nook Color find a niche in the tablet market?

Convergence:

• Google TV reboots, but is anyone watching?

Productivity:

• Google Reader revamp arrives.

Global Business:

• How Groupon is losing China.

Privacy:

• Your phone company is selling your personal data.

• Google 'Why These Ads' is olive branch to privacy watchdogs.