Privacy:

• Google tackles online privacy in unusual ad blitz.

Signs of What's to Come:

• Apple to announce tools, platform to 'digitally destroy' textbook publishing.

• Big firms try crowdsourcing.

Legal/Regulatory:

• Wikipedia may black out Wednesday in protest of anti-piracy legislation.

Finance:

• Facebook IPO reportedly set for late May.

Security:

• Shoe retailer Zappos.com is victim of cyber attack.

Mobile Computing:

• Samsung seeks to merge smartphone operating platforms.

• iPad 3 production begins, report says.

Broadband:

• Comcast is the fastest broadband provider in the U.S.

Global:

• Number of Web users in China hits 513 million.

• Microblogging use in China quadrupled in 2011.

Research & Stats:

• Study: Why do people use Facebook?