Social Media:

• Pinterest hits 10 million monthly uniques faster than any standalone site ever.

• Why Facebook may not succeed in China.

Mobile Marketing:

• How HTML5 is changing mobile advertising.

• Facebook mobile ads not likely to be a distraction.

Business News:

• Amazon and Viacom close to Web video deal.

Security:

• Hacker releases Symantec source code.

Mobile Computing:

• Google is said to assure fair licensing for Motorola patents.

• RIM tells European developers it's "ready to compete".

Signs of What's to Come:

• Apple's expected television set may be in TV makers' hands.

Finance:

• Yammer closing monster $50M+ funding round imminently.