Online Ad Market:

• OpenX takes on Google, others in online display ads.

• A look at AdKeeper.

Mobile Computing:

• The HP Touchpad will come with its own Facebook apps.

• E-readers are more popular than tablets.

Business Strategies:

• Hulu buyers would get exclusive content, with strings attached.

• Answers.com gets gutted by its new owner: massive layoffs, CEO And CTO out.

Search:

• Getty museum, Google join forces to enhance visit.

Security:

• Facebook hires renown hacker Geohot.

• US spins out cyber-security plans to protect small businesses.

Privacy:

• Google gives user data to government in most cases.