Online Ad Market:

• Adsense for social network sharers?

• Do you want to save your web ads? AdKeeper bets $35 million that you will.

Mobile Marketing:

• In the works: A Google mobile payment service?

• Restaurants now realizing that the iPad makes life easier.

Mobile Computing:

• Toshiba announces unnamed Tegra 2-powered Android tablet.

Business Strategies:

• Goldman invests in Facebook at $50 billion valuation.

• Facebook and Goldman Sachs: inflating a new bubble?

Social Media:

• Q&A site Quora builds buzz with A-list answerers.

2011 Predictions:

• The top mobile trends of 2011.

Demographics:

• Hispanics receptive to interactive ads.

Pearls of Wisdom:

• 2011 is here. Now let’s get serious about Facebook marketing.

• Analyst: Facebook poses serious threat to Google.